Finding the Fourth Proportional to 9,025.50, 12,455.19 and 5,488.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,025.50 : 12,455.19 = 5,488.05 : x
2. Step 2: Convert to fraction form
   9,025.50/12,455.19 = 5,488.05/x
3. Step 3: Cross multiply
   9,025.50x = 12,455.19 × 5,488.05
4. Step 4: Simplify right side
   9,025.50x = 68,354,705.48
5. Step 5: Solve for x
   x = 68,354,705.48/9,025.50
6. Step 6: Final answer
   x = 7,573.51