Finding the Fourth Proportional to 17,498.78, 24,147.91 and 9,540.99

Step by Step Solution

1. Step 1: Write the proportion equation
   17,498.78 : 24,147.91 = 9,540.99 : x
2. Step 2: Convert to fraction form
   17,498.78/24,147.91 = 9,540.99/x
3. Step 3: Cross multiply
   17,498.78x = 24,147.91 × 9,540.99
4. Step 4: Simplify right side
   17,498.78x = 230,394,799.39
5. Step 5: Solve for x
   x = 230,394,799.39/17,498.78
6. Step 6: Final answer
   x = 13,166.33