Finding the Fourth Proportional to 113,633.72, 156,815.62 and 62,648.31

Step by Step Solution

1. Step 1: Write the proportion equation
   113,633.72 : 156,815.62 = 62,648.31 : x
2. Step 2: Convert to fraction form
   113,633.72/156,815.62 = 62,648.31/x
3. Step 3: Cross multiply
   113,633.72x = 156,815.62 × 62,648.31
4. Step 4: Simplify right side
   113,633.72x = 9,824,233,574.60
5. Step 5: Solve for x
   x = 9,824,233,574.60/113,633.72
6. Step 6: Final answer
   x = 86,455.27