Finding the Fourth Proportional to 4,591.98, 6,339.90 and 3,158.76

Step by Step Solution

1. Step 1: Write the proportion equation
   4,591.98 : 6,339.90 = 3,158.76 : x
2. Step 2: Convert to fraction form
   4,591.98/6,339.90 = 3,158.76/x
3. Step 3: Cross multiply
   4,591.98x = 6,339.90 × 3,158.76
4. Step 4: Simplify right side
   4,591.98x = 20,026,222.52
5. Step 5: Solve for x
   x = 20,026,222.52/4,591.98
6. Step 6: Final answer
   x = 4,361.13