Finding the Fourth Proportional to 5,231.28, 7,217.41 and 2,962.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,231.28 : 7,217.41 = 2,962.31 : x
2. Step 2: Convert to fraction form
   5,231.28/7,217.41 = 2,962.31/x
3. Step 3: Cross multiply
   5,231.28x = 7,217.41 × 2,962.31
4. Step 4: Simplify right side
   5,231.28x = 21,380,223.86
5. Step 5: Solve for x
   x = 21,380,223.86/5,231.28
6. Step 6: Final answer
   x = 4,086.99