Finding the Fourth Proportional to 9,018.88, 12,446.16 and 5,039.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.88 : 12,446.16 = 5,039.92 : x
2. Step 2: Convert to fraction form
   9,018.88/12,446.16 = 5,039.92/x
3. Step 3: Cross multiply
   9,018.88x = 12,446.16 × 5,039.92
4. Step 4: Simplify right side
   9,018.88x = 62,727,650.71
5. Step 5: Solve for x
   x = 62,727,650.71/9,018.88
6. Step 6: Final answer
   x = 6,955.15