Finding the Fourth Proportional to 9,012.24, 12,436.04 and 5,285.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.24 : 12,436.04 = 5,285.52 : x
2. Step 2: Convert to fraction form
   9,012.24/12,436.04 = 5,285.52/x
3. Step 3: Cross multiply
   9,012.24x = 12,436.04 × 5,285.52
4. Step 4: Simplify right side
   9,012.24x = 65,730,938.14
5. Step 5: Solve for x
   x = 65,730,938.14/9,012.24
6. Step 6: Final answer
   x = 7,293.52