Finding the Fourth Proportional to 9,633.72, 13,303.98 and 8,228.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,633.72 : 13,303.98 = 8,228.28 : x
2. Step 2: Convert to fraction form
   9,633.72/13,303.98 = 8,228.28/x
3. Step 3: Cross multiply
   9,633.72x = 13,303.98 × 8,228.28
4. Step 4: Simplify right side
   9,633.72x = 109,468,872.55
5. Step 5: Solve for x
   x = 109,468,872.55/9,633.72
6. Step 6: Final answer
   x = 11,363.09