Finding the Fourth Proportional to 8,949.28, 12,350.16 and 5,222.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,949.28 : 12,350.16 = 5,222.56 : x
2. Step 2: Convert to fraction form
   8,949.28/12,350.16 = 5,222.56/x
3. Step 3: Cross multiply
   8,949.28x = 12,350.16 × 5,222.56
4. Step 4: Simplify right side
   8,949.28x = 64,499,451.61
5. Step 5: Solve for x
   x = 64,499,451.61/8,949.28
6. Step 6: Final answer
   x = 7,207.22