Finding the Fourth Proportional to 17,535.90, 24,199.55 and 9,578.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,535.90 : 24,199.55 = 9,578.15 : x
2. Step 2: Convert to fraction form
   17,535.90/24,199.55 = 9,578.15/x
3. Step 3: Cross multiply
   17,535.90x = 24,199.55 × 9,578.15
4. Step 4: Simplify right side
   17,535.90x = 231,786,877.61
5. Step 5: Solve for x
   x = 231,786,877.61/17,535.90
6. Step 6: Final answer
   x = 13,217.85