Finding the Fourth Proportional to 3,648.27, 5,023.58 and 3,057.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.27 : 5,023.58 = 3,057.78 : x
2. Step 2: Convert to fraction form
   3,648.27/5,023.58 = 3,057.78/x
3. Step 3: Cross multiply
   3,648.27x = 5,023.58 × 3,057.78
4. Step 4: Simplify right side
   3,648.27x = 15,360,987.16
5. Step 5: Solve for x
   x = 15,360,987.16/3,648.27
6. Step 6: Final answer
   x = 4,210.49