The answer should be something around the greatest force direction, the dominant force direction, or the effective force direction. Any expression of those should answer it correctly.
As the greatest forces always have greater magnitude than the other forces. If the other forces are acting n a line 180° to the greatest fore, the net force will be= magnitude of the greatest force- magnitude of all other forces. And the direction will be same as the greatest force. If the forces act on several angles like 50°, 120°, etc... then you use the resultant technique. But the angle will always be closer to the force with the greatest magnitude.
Hope this helps!
