Finding the Fourth Proportional to 4,162.12, 5,744.72 and 3,216.47

Step by Step Solution

1. Step 1: Write the proportion equation
   4,162.12 : 5,744.72 = 3,216.47 : x
2. Step 2: Convert to fraction form
   4,162.12/5,744.72 = 3,216.47/x
3. Step 3: Cross multiply
   4,162.12x = 5,744.72 × 3,216.47
4. Step 4: Simplify right side
   4,162.12x = 18,477,698.86
5. Step 5: Solve for x
   x = 18,477,698.86/4,162.12
6. Step 6: Final answer
   x = 4,439.49