Finding the Fourth Proportional to 31,532.46, 43,514.46 and 17,385

Step by Step Solution

1. Step 1: Write the proportion equation
   31,532.46 : 43,514.46 = 17,385 : x
2. Step 2: Convert to fraction form
   31,532.46/43,514.46 = 17,385/x
3. Step 3: Cross multiply
   31,532.46x = 43,514.46 × 17,385
4. Step 4: Simplify right side
   31,532.46x = 756,498,887.10
5. Step 5: Solve for x
   x = 756,498,887.10/31,532.46
6. Step 6: Final answer
   x = 23,991.12