Finding the Fourth Proportional to 9,624.48, 13,272.72 and 8,208.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,624.48 : 13,272.72 = 8,208.72 : x
2. Step 2: Convert to fraction form
   9,624.48/13,272.72 = 8,208.72/x
3. Step 3: Cross multiply
   9,624.48x = 13,272.72 × 8,208.72
4. Step 4: Simplify right side
   9,624.48x = 108,952,042.12
5. Step 5: Solve for x
   x = 108,952,042.12/9,624.48
6. Step 6: Final answer
   x = 11,320.30