Finding the Fourth Proportional to 5,180.50, 7,149.32 and 2,942.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,180.50 : 7,149.32 = 2,942.38 : x
2. Step 2: Convert to fraction form
   5,180.50/7,149.32 = 2,942.38/x
3. Step 3: Cross multiply
   5,180.50x = 7,149.32 × 2,942.38
4. Step 4: Simplify right side
   5,180.50x = 21,036,016.18
5. Step 5: Solve for x
   x = 21,036,016.18/5,180.50
6. Step 6: Final answer
   x = 4,060.62