Finding the Fourth Proportional to 71,142.72, 106,682.64 and 37,854.90

Step by Step Solution

1. Step 1: Write the proportion equation
   71,142.72 : 106,682.64 = 37,854.90 : x
2. Step 2: Convert to fraction form
   71,142.72/106,682.64 = 37,854.90/x
3. Step 3: Cross multiply
   71,142.72x = 106,682.64 × 37,854.90
4. Step 4: Simplify right side
   71,142.72x = 4,038,460,668.94
5. Step 5: Solve for x
   x = 4,038,460,668.94/71,142.72
6. Step 6: Final answer
   x = 56,765.62