Finding the Fourth Proportional to 17,478.18, 24,120.17 and 9,520.41

Step by Step Solution

1. Step 1: Write the proportion equation
   17,478.18 : 24,120.17 = 9,520.41 : x
2. Step 2: Convert to fraction form
   17,478.18/24,120.17 = 9,520.41/x
3. Step 3: Cross multiply
   17,478.18x = 24,120.17 × 9,520.41
4. Step 4: Simplify right side
   17,478.18x = 229,633,907.67
5. Step 5: Solve for x
   x = 229,633,907.67/17,478.18
6. Step 6: Final answer
   x = 13,138.32