Finding the Fourth Proportional to 31,291.72, 43,182.32 and 16,951.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,291.72 : 43,182.32 = 16,951.20 : x
2. Step 2: Convert to fraction form
   31,291.72/43,182.32 = 16,951.20/x
3. Step 3: Cross multiply
   31,291.72x = 43,182.32 × 16,951.20
4. Step 4: Simplify right side
   31,291.72x = 731,992,142.78
5. Step 5: Solve for x
   x = 731,992,142.78/31,291.72
6. Step 6: Final answer
   x = 23,392.52