Finding the Fourth Proportional to 5,180.50, 7,149.27 and 2,942.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,180.50 : 7,149.27 = 2,942.47 : x
2. Step 2: Convert to fraction form
   5,180.50/7,149.27 = 2,942.47/x
3. Step 3: Cross multiply
   5,180.50x = 7,149.27 × 2,942.47
4. Step 4: Simplify right side
   5,180.50x = 21,036,512.50
5. Step 5: Solve for x
   x = 21,036,512.50/5,180.50
6. Step 6: Final answer
   x = 4,060.71