Finding the Fourth Proportional to 9,015.24, 12,440.18 and 5,288.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,015.24 : 12,440.18 = 5,288.52 : x
2. Step 2: Convert to fraction form
   9,015.24/12,440.18 = 5,288.52/x
3. Step 3: Cross multiply
   9,015.24x = 12,440.18 × 5,288.52
4. Step 4: Simplify right side
   9,015.24x = 65,790,140.73
5. Step 5: Solve for x
   x = 65,790,140.73/9,015.24
6. Step 6: Final answer
   x = 7,297.66