Finding the Fourth Proportional to 113,315.47, 156,428.82 and 71,943.24

Step by Step Solution

1. Step 1: Write the proportion equation
   113,315.47 : 156,428.82 = 71,943.24 : x
2. Step 2: Convert to fraction form
   113,315.47/156,428.82 = 71,943.24/x
3. Step 3: Cross multiply
   113,315.47x = 156,428.82 × 71,943.24
4. Step 4: Simplify right side
   113,315.47x = 11,253,996,409.96
5. Step 5: Solve for x
   x = 11,253,996,409.96/113,315.47
6. Step 6: Final answer
   x = 99,315.62