Finding the Fourth Proportional to 17,578.15, 24,257.89 and 9,620.89

Step by Step Solution

1. Step 1: Write the proportion equation
   17,578.15 : 24,257.89 = 9,620.89 : x
2. Step 2: Convert to fraction form
   17,578.15/24,257.89 = 9,620.89/x
3. Step 3: Cross multiply
   17,578.15x = 24,257.89 × 9,620.89
4. Step 4: Simplify right side
   17,578.15x = 233,382,442.70
5. Step 5: Solve for x
   x = 233,382,442.70/17,578.15
6. Step 6: Final answer
   x = 13,276.85