Finding the Fourth Proportional to 17,518.88, 24,176.56 and 9,561.61

Step by Step Solution

1. Step 1: Write the proportion equation
   17,518.88 : 24,176.56 = 9,561.61 : x
2. Step 2: Convert to fraction form
   17,518.88/24,176.56 = 9,561.61/x
3. Step 3: Cross multiply
   17,518.88x = 24,176.56 × 9,561.61
4. Step 4: Simplify right side
   17,518.88x = 231,166,837.86
5. Step 5: Solve for x
   x = 231,166,837.86/17,518.88
6. Step 6: Final answer
   x = 13,195.30