Finding the Fourth Proportional to 12,049.50, 18,072.42 and 3,285.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,049.50 : 18,072.42 = 3,285.10 : x
2. Step 2: Convert to fraction form
   12,049.50/18,072.42 = 3,285.10/x
3. Step 3: Cross multiply
   12,049.50x = 18,072.42 × 3,285.10
4. Step 4: Simplify right side
   12,049.50x = 59,369,706.94
5. Step 5: Solve for x
   x = 59,369,706.94/12,049.50
6. Step 6: Final answer
   x = 4,927.15