Finding the Fourth Proportional to 31,254.40, 43,131 and 17,107.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,254.40 : 43,131 = 17,107.12 : x
2. Step 2: Convert to fraction form
   31,254.40/43,131 = 17,107.12/x
3. Step 3: Cross multiply
   31,254.40x = 43,131 × 17,107.12
4. Step 4: Simplify right side
   31,254.40x = 737,847,192.72
5. Step 5: Solve for x
   x = 737,847,192.72/31,254.40
6. Step 6: Final answer
   x = 23,607.79