Finding the Fourth Proportional to 5,223.24, 7,836.84 and 3,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,223.24 : 7,836.84 = 3,144.72 : x
2. Step 2: Convert to fraction form
   5,223.24/7,836.84 = 3,144.72/x
3. Step 3: Cross multiply
   5,223.24x = 7,836.84 × 3,144.72
4. Step 4: Simplify right side
   5,223.24x = 24,644,667.48
5. Step 5: Solve for x
   x = 24,644,667.48/5,223.24
6. Step 6: Final answer
   x = 4,718.27