Finding the Fourth Proportional to 113,721.25, 156,932.81 and 62,734.02

Step by Step Solution

1. Step 1: Write the proportion equation
   113,721.25 : 156,932.81 = 62,734.02 : x
2. Step 2: Convert to fraction form
   113,721.25/156,932.81 = 62,734.02/x
3. Step 3: Cross multiply
   113,721.25x = 156,932.81 × 62,734.02
4. Step 4: Simplify right side
   113,721.25x = 9,845,024,942.86
5. Step 5: Solve for x
   x = 9,845,024,942.86/113,721.25
6. Step 6: Final answer
   x = 86,571.55