Finding the Fourth Proportional to 5,499.60, 7,591.14 and 3,143.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,499.60 : 7,591.14 = 3,143.28 : x
2. Step 2: Convert to fraction form
   5,499.60/7,591.14 = 3,143.28/x
3. Step 3: Cross multiply
   5,499.60x = 7,591.14 × 3,143.28
4. Step 4: Simplify right side
   5,499.60x = 23,861,078.54
5. Step 5: Solve for x
   x = 23,861,078.54/5,499.60
6. Step 6: Final answer
   x = 4,338.69