Finding the Fourth Proportional to 17,599.86, 24,288.48 and 9,642.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,599.86 : 24,288.48 = 9,642.78 : x
2. Step 2: Convert to fraction form
   17,599.86/24,288.48 = 9,642.78/x
3. Step 3: Cross multiply
   17,599.86x = 24,288.48 × 9,642.78
4. Step 4: Simplify right side
   17,599.86x = 234,208,469.17
5. Step 5: Solve for x
   x = 234,208,469.17/17,599.86
6. Step 6: Final answer
   x = 13,307.41