Finding the Fourth Proportional to 17,418.88, 26,128.56 and 9,610.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,418.88 : 26,128.56 = 9,610.72 : x
2. Step 2: Convert to fraction form
   17,418.88/26,128.56 = 9,610.72/x
3. Step 3: Cross multiply
   17,418.88x = 26,128.56 × 9,610.72
4. Step 4: Simplify right side
   17,418.88x = 251,114,274.16
5. Step 5: Solve for x
   x = 251,114,274.16/17,418.88
6. Step 6: Final answer
   x = 14,416.21