Finding the Fourth Proportional to 9,225.36, 13,812.12 and 7,650.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,225.36 : 13,812.12 = 7,650.72 : x
2. Step 2: Convert to fraction form
   9,225.36/13,812.12 = 7,650.72/x
3. Step 3: Cross multiply
   9,225.36x = 13,812.12 × 7,650.72
4. Step 4: Simplify right side
   9,225.36x = 105,672,662.73
5. Step 5: Solve for x
   x = 105,672,662.73/9,225.36
6. Step 6: Final answer
   x = 11,454.58