Finding the Fourth Proportional to 9,002.75, 12,425.20 and 5,225.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,002.75 : 12,425.20 = 5,225.92 : x
2. Step 2: Convert to fraction form
   9,002.75/12,425.20 = 5,225.92/x
3. Step 3: Cross multiply
   9,002.75x = 12,425.20 × 5,225.92
4. Step 4: Simplify right side
   9,002.75x = 64,933,057.06
5. Step 5: Solve for x
   x = 64,933,057.06/9,002.75
6. Step 6: Final answer
   x = 7,212.58