Finding the Fourth Proportional to 113,564.62, 156,617.31 and 71,127.10

Step by Step Solution

1. Step 1: Write the proportion equation
   113,564.62 : 156,617.31 = 71,127.10 : x
2. Step 2: Convert to fraction form
   113,564.62/156,617.31 = 71,127.10/x
3. Step 3: Cross multiply
   113,564.62x = 156,617.31 × 71,127.10
4. Step 4: Simplify right side
   113,564.62x = 11,139,735,070.10
5. Step 5: Solve for x
   x = 11,139,735,070.10/113,564.62
6. Step 6: Final answer
   x = 98,091.60