Finding the Fourth Proportional to 5,500.71, 7,591.32 and 3,142.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,500.71 : 7,591.32 = 3,142.80 : x
2. Step 2: Convert to fraction form
   5,500.71/7,591.32 = 3,142.80/x
3. Step 3: Cross multiply
   5,500.71x = 7,591.32 × 3,142.80
4. Step 4: Simplify right side
   5,500.71x = 23,858,000.50
5. Step 5: Solve for x
   x = 23,858,000.50/5,500.71
6. Step 6: Final answer
   x = 4,337.26