Finding the Fourth Proportional to 5,500.45, 7,590.61 and 3,142.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,500.45 : 7,590.61 = 3,142.54 : x
2. Step 2: Convert to fraction form
   5,500.45/7,590.61 = 3,142.54/x
3. Step 3: Cross multiply
   5,500.45x = 7,590.61 × 3,142.54
4. Step 4: Simplify right side
   5,500.45x = 23,853,795.55
5. Step 5: Solve for x
   x = 23,853,795.55/5,500.45
6. Step 6: Final answer
   x = 4,336.70