Finding the Fourth Proportional to 17,490.72, 26,243.82 and 9,168.74

Step by Step Solution

1. Step 1: Write the proportion equation
   17,490.72 : 26,243.82 = 9,168.74 : x
2. Step 2: Convert to fraction form
   17,490.72/26,243.82 = 9,168.74/x
3. Step 3: Cross multiply
   17,490.72x = 26,243.82 × 9,168.74
4. Step 4: Simplify right side
   17,490.72x = 240,622,762.19
5. Step 5: Solve for x
   x = 240,622,762.19/17,490.72
6. Step 6: Final answer
   x = 13,757.17