Finding the Fourth Proportional to 99,761.52, 137,546.32 and 63,892.56

Step by Step Solution

1. Step 1: Write the proportion equation
   99,761.52 : 137,546.32 = 63,892.56 : x
2. Step 2: Convert to fraction form
   99,761.52/137,546.32 = 63,892.56/x
3. Step 3: Cross multiply
   99,761.52x = 137,546.32 × 63,892.56
4. Step 4: Simplify right side
   99,761.52x = 8,788,186,503.38
5. Step 5: Solve for x
   x = 8,788,186,503.38/99,761.52
6. Step 6: Final answer
   x = 88,091.95