Currencies
In this example, the following Base Currencies have been chosen for each Company:

One Currency must be in use as a Base Currency in all Companies. In this case, it is the Euro. This is known as the "Group Currency" and is the Currency that will be used in consolidated reports.
In the example, the Euro is used as Base Currency 2 in three of the four Companies, and as Base Currency 1 in the second Daughter Company. In the Consolidation Settings in each Company, it should be specified whether the Euro is being used as Base Currency 1 or 2 in that Company:

Flip B of the Transaction in the Mother Company shows its value in both Currencies:

The values of the Transactions in the other Companies are as follows:
Company | Base Currency 1 | Base Currency 2 |
Daughter 1 | SEK 1500.00 | EUR 155.56 |
Daughter 2 | EUR 70.59 | |
Grand Daughter | NOK 850.00 | EUR 100.00 |
In a Balance Sheet produced from the Mother Company using the Include Daughter Companies option, all figures will be in the Group Currency (Euros):

The Euro figures are taken straight from the Daughter Companies, so the balance for the three Bank Accounts is calculated as follows:
| 3,076.92 | | from M |
+ | 155.56 | x 60% | from D1 (60% owned by M) |
+ | 70.59 | | from D2 |
+ | 100.00 | x 80% | from GD1 (80% owned by D2) |
| 3,320.85 | | |