Finding the Fourth Proportional to 9,025.84, 12,459.54 and 5,490.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,025.84 : 12,459.54 = 5,490.28 : x
2. Step 2: Convert to fraction form
   9,025.84/12,459.54 = 5,490.28/x
3. Step 3: Cross multiply
   9,025.84x = 12,459.54 × 5,490.28
4. Step 4: Simplify right side
   9,025.84x = 68,406,363.27
5. Step 5: Solve for x
   x = 68,406,363.27/9,025.84
6. Step 6: Final answer
   x = 7,578.95