Finding the Fourth Proportional to 71,128.24, 98,159.76 and 40,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,128.24 : 98,159.76 = 40,913.50 : x
2. Step 2: Convert to fraction form
   71,128.24/98,159.76 = 40,913.50/x
3. Step 3: Cross multiply
   71,128.24x = 98,159.76 × 40,913.50
4. Step 4: Simplify right side
   71,128.24x = 4,016,059,340.76
5. Step 5: Solve for x
   x = 4,016,059,340.76/71,128.24
6. Step 6: Final answer
   x = 56,462.23