Finding the Fourth Proportional to 9,311.34, 12,833.16 and 8,225.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,311.34 : 12,833.16 = 8,225.12 : x
2. Step 2: Convert to fraction form
   9,311.34/12,833.16 = 8,225.12/x
3. Step 3: Cross multiply
   9,311.34x = 12,833.16 × 8,225.12
4. Step 4: Simplify right side
   9,311.34x = 105,554,280.98
5. Step 5: Solve for x
   x = 105,554,280.98/9,311.34
6. Step 6: Final answer
   x = 11,336.10