Finding the Fourth Proportional to 3,771.42, 5,209.56 and 3,144.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,771.42 : 5,209.56 = 3,144.02 : x
2. Step 2: Convert to fraction form
   3,771.42/5,209.56 = 3,144.02/x
3. Step 3: Cross multiply
   3,771.42x = 5,209.56 × 3,144.02
4. Step 4: Simplify right side
   3,771.42x = 16,378,960.83
5. Step 5: Solve for x
   x = 16,378,960.83/3,771.42
6. Step 6: Final answer
   x = 4,342.92