Finding the Fourth Proportional to 99,693.92, 137,499.83 and 63,887.27

Step by Step Solution

1. Step 1: Write the proportion equation
   99,693.92 : 137,499.83 = 63,887.27 : x
2. Step 2: Convert to fraction form
   99,693.92/137,499.83 = 63,887.27/x
3. Step 3: Cross multiply
   99,693.92x = 137,499.83 × 63,887.27
4. Step 4: Simplify right side
   99,693.92x = 8,784,487,996.81
5. Step 5: Solve for x
   x = 8,784,487,996.81/99,693.92
6. Step 6: Final answer
   x = 88,114.58