Finding the Fourth Proportional to 71,151.30, 106,760.16 and 31,704.30

Step by Step Solution

1. Step 1: Write the proportion equation
   71,151.30 : 106,760.16 = 31,704.30 : x
2. Step 2: Convert to fraction form
   71,151.30/106,760.16 = 31,704.30/x
3. Step 3: Cross multiply
   71,151.30x = 106,760.16 × 31,704.30
4. Step 4: Simplify right side
   71,151.30x = 3,384,756,140.69
5. Step 5: Solve for x
   x = 3,384,756,140.69/71,151.30
6. Step 6: Final answer
   x = 47,571.25