Finding the Fourth Proportional to 9,018.02, 12,443.06 and 5,241.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.02 : 12,443.06 = 5,241.20 : x
2. Step 2: Convert to fraction form
   9,018.02/12,443.06 = 5,241.20/x
3. Step 3: Cross multiply
   9,018.02x = 12,443.06 × 5,241.20
4. Step 4: Simplify right side
   9,018.02x = 65,216,477.65
5. Step 5: Solve for x
   x = 65,216,477.65/9,018.02
6. Step 6: Final answer
   x = 7,231.80