Finding the Fourth Proportional to 71,429.87, 98,553.27 and 56,275.49

Step by Step Solution

1. Step 1: Write the proportion equation
   71,429.87 : 98,553.27 = 56,275.49 : x
2. Step 2: Convert to fraction form
   71,429.87/98,553.27 = 56,275.49/x
3. Step 3: Cross multiply
   71,429.87x = 98,553.27 × 56,275.49
4. Step 4: Simplify right side
   71,429.87x = 5,546,134,017.77
5. Step 5: Solve for x
   x = 5,546,134,017.77/71,429.87
6. Step 6: Final answer
   x = 77,644.46