Finding the Fourth Proportional to 5,500.98, 7,591.20 and 3,143.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,500.98 : 7,591.20 = 3,143.12 : x
2. Step 2: Convert to fraction form
   5,500.98/7,591.20 = 3,143.12/x
3. Step 3: Cross multiply
   5,500.98x = 7,591.20 × 3,143.12
4. Step 4: Simplify right side
   5,500.98x = 23,860,002.80
5. Step 5: Solve for x
   x = 23,860,002.80/5,500.98
6. Step 6: Final answer
   x = 4,337.41