Finding the Fourth Proportional to 4,429.10, 6,105.39 and 2,855.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,429.10 : 6,105.39 = 2,855.18 : x
2. Step 2: Convert to fraction form
   4,429.10/6,105.39 = 2,855.18/x
3. Step 3: Cross multiply
   4,429.10x = 6,105.39 × 2,855.18
4. Step 4: Simplify right side
   4,429.10x = 17,431,987.42
5. Step 5: Solve for x
   x = 17,431,987.42/4,429.10
6. Step 6: Final answer
   x = 3,935.79