Finding the Fourth Proportional to 17,869.50, 24,651.82 and 11,156.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,869.50 : 24,651.82 = 11,156.78 : x
2. Step 2: Convert to fraction form
   17,869.50/24,651.82 = 11,156.78/x
3. Step 3: Cross multiply
   17,869.50x = 24,651.82 × 11,156.78
4. Step 4: Simplify right side
   17,869.50x = 275,034,876.56
5. Step 5: Solve for x
   x = 275,034,876.56/17,869.50
6. Step 6: Final answer
   x = 15,391.31