Finding the Fourth Proportional to 31,661.61, 43,693.20 and 17,514.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,661.61 : 43,693.20 = 17,514.96 : x
2. Step 2: Convert to fraction form
   31,661.61/43,693.20 = 17,514.96/x
3. Step 3: Cross multiply
   31,661.61x = 43,693.20 × 17,514.96
4. Step 4: Simplify right side
   31,661.61x = 765,284,650.27
5. Step 5: Solve for x
   x = 765,284,650.27/31,661.61
6. Step 6: Final answer
   x = 24,170.74