Finding the Fourth Proportional to 17,676, 24,391.72 and 9,717.48

Step by Step Solution

1. Step 1: Write the proportion equation
   17,676 : 24,391.72 = 9,717.48 : x
2. Step 2: Convert to fraction form
   17,676/24,391.72 = 9,717.48/x
3. Step 3: Cross multiply
   17,676x = 24,391.72 × 9,717.48
4. Step 4: Simplify right side
   17,676x = 237,026,051.27
5. Step 5: Solve for x
   x = 237,026,051.27/17,676
6. Step 6: Final answer
   x = 13,409.48