Finding the Fourth Proportional to 113,507.61, 156,641.55 and 62,520.53

Step by Step Solution

1. Step 1: Write the proportion equation
   113,507.61 : 156,641.55 = 62,520.53 : x
2. Step 2: Convert to fraction form
   113,507.61/156,641.55 = 62,520.53/x
3. Step 3: Cross multiply
   113,507.61x = 156,641.55 × 62,520.53
4. Step 4: Simplify right side
   113,507.61x = 9,793,311,942.81
5. Step 5: Solve for x
   x = 9,793,311,942.81/113,507.61
6. Step 6: Final answer
   x = 86,278.90