Finding the Fourth Proportional to 4,839.71, 6,679.71 and 3,162.55

Step by Step Solution

1. Step 1: Write the proportion equation
   4,839.71 : 6,679.71 = 3,162.55 : x
2. Step 2: Convert to fraction form
   4,839.71/6,679.71 = 3,162.55/x
3. Step 3: Cross multiply
   4,839.71x = 6,679.71 × 3,162.55
4. Step 4: Simplify right side
   4,839.71x = 21,124,912.69
5. Step 5: Solve for x
   x = 21,124,912.69/4,839.71
6. Step 6: Final answer
   x = 4,364.92