Finding the Fourth Proportional to 88,801.68, 132,554.72 and 77,591.47

Step by Step Solution

1. Step 1: Write the proportion equation
   88,801.68 : 132,554.72 = 77,591.47 : x
2. Step 2: Convert to fraction form
   88,801.68/132,554.72 = 77,591.47/x
3. Step 3: Cross multiply
   88,801.68x = 132,554.72 × 77,591.47
4. Step 4: Simplify right side
   88,801.68x = 10,285,115,580.24
5. Step 5: Solve for x
   x = 10,285,115,580.24/88,801.68
6. Step 6: Final answer
   x = 115,821.18