Finding the Fourth Proportional to 12,039.16, 18,061.04 and 3,718.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,039.16 : 18,061.04 = 3,718.86 : x
2. Step 2: Convert to fraction form
   12,039.16/18,061.04 = 3,718.86/x
3. Step 3: Cross multiply
   12,039.16x = 18,061.04 × 3,718.86
4. Step 4: Simplify right side
   12,039.16x = 67,166,370.31
5. Step 5: Solve for x
   x = 67,166,370.31/12,039.16
6. Step 6: Final answer
   x = 5,578.99