Final answer:
The amount of the common fixed expense not traceable to the individual divisions is -$122,500.
Step-by-step explanation:
The amount of the common fixed expense not traceable to the individual divisions can be calculated by subtracting the divisional segment margins from the net operating income. Therefore, the common fixed expense can be determined by subtracting the South Division's divisional segment margin of $43,600 and the West Division's divisional segment margin of $174,300 from the net operating income of $95,400.
Common fixed expense = Net operating income - Divisional segment margin of South Division - Divisional segment margin of West Division
Common fixed expense = $95,400 - $43,600 - $174,300 = $-122,500
The amount of the common fixed expense not traceable to the individual divisions is -$122,500, which means there is a deficit in the common fixed expense.