Finding the Fourth Proportional to 6,251.38, 8,626.55 and 3,665.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,251.38 : 8,626.55 = 3,665.09 : x
2. Step 2: Convert to fraction form
   6,251.38/8,626.55 = 3,665.09/x
3. Step 3: Cross multiply
   6,251.38x = 8,626.55 × 3,665.09
4. Step 4: Simplify right side
   6,251.38x = 31,617,085.38
5. Step 5: Solve for x
   x = 31,617,085.38/6,251.38
6. Step 6: Final answer
   x = 5,057.62