Finding the Fourth Proportional to 3,626.27, 5,423.47 and 3,157.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,626.27 : 5,423.47 = 3,157.28 : x
2. Step 2: Convert to fraction form
   3,626.27/5,423.47 = 3,157.28/x
3. Step 3: Cross multiply
   3,626.27x = 5,423.47 × 3,157.28
4. Step 4: Simplify right side
   3,626.27x = 17,123,398.69
5. Step 5: Solve for x
   x = 17,123,398.69/3,626.27
6. Step 6: Final answer
   x = 4,722.04