Finding the Fourth Proportional to 4,339.98, 5,986.26 and 3,142.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,339.98 : 5,986.26 = 3,142.89 : x
2. Step 2: Convert to fraction form
   4,339.98/5,986.26 = 3,142.89/x
3. Step 3: Cross multiply
   4,339.98x = 5,986.26 × 3,142.89
4. Step 4: Simplify right side
   4,339.98x = 18,814,156.69
5. Step 5: Solve for x
   x = 18,814,156.69/4,339.98
6. Step 6: Final answer
   x = 4,335.08