Finding the Fourth Proportional to 17,080.30, 23,571.40 and 9,909.68

Step by Step Solution

1. Step 1: Write the proportion equation
   17,080.30 : 23,571.40 = 9,909.68 : x
2. Step 2: Convert to fraction form
   17,080.30/23,571.40 = 9,909.68/x
3. Step 3: Cross multiply
   17,080.30x = 23,571.40 × 9,909.68
4. Step 4: Simplify right side
   17,080.30x = 233,585,031.15
5. Step 5: Solve for x
   x = 233,585,031.15/17,080.30
6. Step 6: Final answer
   x = 13,675.70