Finding the Fourth Proportional to 31,666.50, 43,695.99 and 17,517.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,666.50 : 43,695.99 = 17,517.42 : x
2. Step 2: Convert to fraction form
   31,666.50/43,695.99 = 17,517.42/x
3. Step 3: Cross multiply
   31,666.50x = 43,695.99 × 17,517.42
4. Step 4: Simplify right side
   31,666.50x = 765,441,009.15
5. Step 5: Solve for x
   x = 765,441,009.15/31,666.50
6. Step 6: Final answer
   x = 24,171.95