Finding the Fourth Proportional to 17,287.43, 23,856.42 and 9,630.70

Step by Step Solution

1. Step 1: Write the proportion equation
   17,287.43 : 23,856.42 = 9,630.70 : x
2. Step 2: Convert to fraction form
   17,287.43/23,856.42 = 9,630.70/x
3. Step 3: Cross multiply
   17,287.43x = 23,856.42 × 9,630.70
4. Step 4: Simplify right side
   17,287.43x = 229,754,000.57
5. Step 5: Solve for x
   x = 229,754,000.57/17,287.43
6. Step 6: Final answer
   x = 13,290.24