Finding the Fourth Proportional to 31,664.72, 43,698.60 and 17,517.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,664.72 : 43,698.60 = 17,517.32 : x
2. Step 2: Convert to fraction form
   31,664.72/43,698.60 = 17,517.32/x
3. Step 3: Cross multiply
   31,664.72x = 43,698.60 × 17,517.32
4. Step 4: Simplify right side
   31,664.72x = 765,482,359.75
5. Step 5: Solve for x
   x = 765,482,359.75/31,664.72
6. Step 6: Final answer
   x = 24,174.61