Finding the Fourth Proportional to 3,642.86, 5,456.18 and 3,168.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642.86 : 5,456.18 = 3,168.27 : x
2. Step 2: Convert to fraction form
   3,642.86/5,456.18 = 3,168.27/x
3. Step 3: Cross multiply
   3,642.86x = 5,456.18 × 3,168.27
4. Step 4: Simplify right side
   3,642.86x = 17,286,659.33
5. Step 5: Solve for x
   x = 17,286,659.33/3,642.86
6. Step 6: Final answer
   x = 4,745.35