Finding the Fourth Proportional to 31,663.85, 43,696.39 and 17,517.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,663.85 : 43,696.39 = 17,517.61 : x
2. Step 2: Convert to fraction form
   31,663.85/43,696.39 = 17,517.61/x
3. Step 3: Cross multiply
   31,663.85x = 43,696.39 × 17,517.61
4. Step 4: Simplify right side
   31,663.85x = 765,456,165.39
5. Step 5: Solve for x
   x = 765,456,165.39/31,663.85
6. Step 6: Final answer
   x = 24,174.45