Finding the Fourth Proportional to 71,941.59, 99,275.75 and 39,681.83

Step by Step Solution

1. Step 1: Write the proportion equation
   71,941.59 : 99,275.75 = 39,681.83 : x
2. Step 2: Convert to fraction form
   71,941.59/99,275.75 = 39,681.83/x
3. Step 3: Cross multiply
   71,941.59x = 99,275.75 × 39,681.83
4. Step 4: Simplify right side
   71,941.59x = 3,939,443,434.62
5. Step 5: Solve for x
   x = 3,939,443,434.62/71,941.59
6. Step 6: Final answer
   x = 54,758.92