Finding the Fourth Proportional to 9,693.24, 14,517.42 and 8,272.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,693.24 : 14,517.42 = 8,272.20 : x
2. Step 2: Convert to fraction form
   9,693.24/14,517.42 = 8,272.20/x
3. Step 3: Cross multiply
   9,693.24x = 14,517.42 × 8,272.20
4. Step 4: Simplify right side
   9,693.24x = 120,091,001.72
5. Step 5: Solve for x
   x = 120,091,001.72/9,693.24
6. Step 6: Final answer
   x = 12,389.15