Finding the Fourth Proportional to 5,105.74, 7,045.94 and 2,867.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,105.74 : 7,045.94 = 2,867.42 : x
2. Step 2: Convert to fraction form
   5,105.74/7,045.94 = 2,867.42/x
3. Step 3: Cross multiply
   5,105.74x = 7,045.94 × 2,867.42
4. Step 4: Simplify right side
   5,105.74x = 20,203,669.27
5. Step 5: Solve for x
   x = 20,203,669.27/5,105.74
6. Step 6: Final answer
   x = 3,957.05