Finding the Fourth Proportional to 9,017.15, 12,441.53 and 5,480.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,017.15 : 12,441.53 = 5,480.15 : x
2. Step 2: Convert to fraction form
   9,017.15/12,441.53 = 5,480.15/x
3. Step 3: Cross multiply
   9,017.15x = 12,441.53 × 5,480.15
4. Step 4: Simplify right side
   9,017.15x = 68,181,402.12
5. Step 5: Solve for x
   x = 68,181,402.12/9,017.15
6. Step 6: Final answer
   x = 7,561.31