Finding the Fourth Proportional to 17,721.72, 24,433.15 and 14,523.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,721.72 : 24,433.15 = 14,523.30 : x
2. Step 2: Convert to fraction form
   17,721.72/24,433.15 = 14,523.30/x
3. Step 3: Cross multiply
   17,721.72x = 24,433.15 × 14,523.30
4. Step 4: Simplify right side
   17,721.72x = 354,849,967.40
5. Step 5: Solve for x
   x = 354,849,967.40/17,721.72
6. Step 6: Final answer
   x = 20,023.45