Finding the Fourth Proportional to 12,013.50, 18,020.49 and 3,249.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013.50 : 18,020.49 = 3,249.18 : x
2. Step 2: Convert to fraction form
   12,013.50/18,020.49 = 3,249.18/x
3. Step 3: Cross multiply
   12,013.50x = 18,020.49 × 3,249.18
4. Step 4: Simplify right side
   12,013.50x = 58,551,815.70
5. Step 5: Solve for x
   x = 58,551,815.70/12,013.50
6. Step 6: Final answer
   x = 4,873.83