Finding the Fourth Proportional to 113,800.50, 157,044.78 and 63,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,800.50 : 157,044.78 = 63,499.50 : x
2. Step 2: Convert to fraction form
   113,800.50/157,044.78 = 63,499.50/x
3. Step 3: Cross multiply
   113,800.50x = 157,044.78 × 63,499.50
4. Step 4: Simplify right side
   113,800.50x = 9,972,265,007.61
5. Step 5: Solve for x
   x = 9,972,265,007.61/113,800.50
6. Step 6: Final answer
   x = 87,629.36