Finding the Fourth Proportional to 3,009.43, 4,143.18 and 2,616.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,009.43 : 4,143.18 = 2,616.31 : x
2. Step 2: Convert to fraction form
   3,009.43/4,143.18 = 2,616.31/x
3. Step 3: Cross multiply
   3,009.43x = 4,143.18 × 2,616.31
4. Step 4: Simplify right side
   3,009.43x = 10,839,843.27
5. Step 5: Solve for x
   x = 10,839,843.27/3,009.43
6. Step 6: Final answer
   x = 3,601.96