Finding the Fourth Proportional to 71,426.07, 98,567.42 and 39,160.30

Step by Step Solution

1. Step 1: Write the proportion equation
   71,426.07 : 98,567.42 = 39,160.30 : x
2. Step 2: Convert to fraction form
   71,426.07/98,567.42 = 39,160.30/x
3. Step 3: Cross multiply
   71,426.07x = 98,567.42 × 39,160.30
4. Step 4: Simplify right side
   71,426.07x = 3,859,929,737.43
5. Step 5: Solve for x
   x = 3,859,929,737.43/71,426.07
6. Step 6: Final answer
   x = 54,040.91