Finding the Fourth Proportional to 71,142.45, 98,167.59 and 39,311.48

Step by Step Solution

1. Step 1: Write the proportion equation
   71,142.45 : 98,167.59 = 39,311.48 : x
2. Step 2: Convert to fraction form
   71,142.45/98,167.59 = 39,311.48/x
3. Step 3: Cross multiply
   71,142.45x = 98,167.59 × 39,311.48
4. Step 4: Simplify right side
   71,142.45x = 3,859,112,760.10
5. Step 5: Solve for x
   x = 3,859,112,760.10/71,142.45
6. Step 6: Final answer
   x = 54,244.87