Finding the Fourth Proportional to 71,354.40, 107,061.42 and 31,352.76

Step by Step Solution

1. Step 1: Write the proportion equation
   71,354.40 : 107,061.42 = 31,352.76 : x
2. Step 2: Convert to fraction form
   71,354.40/107,061.42 = 31,352.76/x
3. Step 3: Cross multiply
   71,354.40x = 107,061.42 × 31,352.76
4. Step 4: Simplify right side
   71,354.40x = 3,356,671,006.52
5. Step 5: Solve for x
   x = 3,356,671,006.52/71,354.40
6. Step 6: Final answer
   x = 47,042.24