Finding the Fourth Proportional to 71,429.31, 98,552.50 and 56,274.93

Step by Step Solution

1. Step 1: Write the proportion equation
   71,429.31 : 98,552.50 = 56,274.93 : x
2. Step 2: Convert to fraction form
   71,429.31/98,552.50 = 56,274.93/x
3. Step 3: Cross multiply
   71,429.31x = 98,552.50 × 56,274.93
4. Step 4: Simplify right side
   71,429.31x = 5,546,034,898.14
5. Step 5: Solve for x
   x = 5,546,034,898.14/71,429.31
6. Step 6: Final answer
   x = 77,643.69