Finding the Fourth Proportional to 17,874.24, 24,669.20 and 17,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,874.24 : 24,669.20 = 17,086.72 : x
2. Step 2: Convert to fraction form
   17,874.24/24,669.20 = 17,086.72/x
3. Step 3: Cross multiply
   17,874.24x = 24,669.20 × 17,086.72
4. Step 4: Simplify right side
   17,874.24x = 421,515,713.02
5. Step 5: Solve for x
   x = 421,515,713.02/17,874.24
6. Step 6: Final answer
   x = 23,582.30