Finding the Fourth Proportional to 12,042.50, 18,061.92 and 3,278.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,042.50 : 18,061.92 = 3,278.09 : x
2. Step 2: Convert to fraction form
   12,042.50/18,061.92 = 3,278.09/x
3. Step 3: Cross multiply
   12,042.50x = 18,061.92 × 3,278.09
4. Step 4: Simplify right side
   12,042.50x = 59,208,644.49
5. Step 5: Solve for x
   x = 59,208,644.49/12,042.50
6. Step 6: Final answer
   x = 4,916.64