Finding the Fourth Proportional to 9,025.75, 12,455.54 and 5,488.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,025.75 : 12,455.54 = 5,488.28 : x
2. Step 2: Convert to fraction form
   9,025.75/12,455.54 = 5,488.28/x
3. Step 3: Cross multiply
   9,025.75x = 12,455.54 × 5,488.28
4. Step 4: Simplify right side
   9,025.75x = 68,359,491.07
5. Step 5: Solve for x
   x = 68,359,491.07/9,025.75
6. Step 6: Final answer
   x = 7,573.83