Finding the Fourth Proportional to 89,155.27, 132,947.15 and 88,355.80

Step by Step Solution

1. Step 1: Write the proportion equation
   89,155.27 : 132,947.15 = 88,355.80 : x
2. Step 2: Convert to fraction form
   89,155.27/132,947.15 = 88,355.80/x
3. Step 3: Cross multiply
   89,155.27x = 132,947.15 × 88,355.80
4. Step 4: Simplify right side
   89,155.27x = 11,746,651,795.97
5. Step 5: Solve for x
   x = 11,746,651,795.97/89,155.27
6. Step 6: Final answer
   x = 131,754.99