Finding the Fourth Proportional to 9,025.28, 12,453.12 and 5,248.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,025.28 : 12,453.12 = 5,248.88 : x
2. Step 2: Convert to fraction form
   9,025.28/12,453.12 = 5,248.88/x
3. Step 3: Cross multiply
   9,025.28x = 12,453.12 × 5,248.88
4. Step 4: Simplify right side
   9,025.28x = 65,364,932.51
5. Step 5: Solve for x
   x = 65,364,932.51/9,025.28
6. Step 6: Final answer
   x = 7,242.43