Finding the Fourth Proportional to 5,180.42, 7,148.42 and 2,942.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,180.42 : 7,148.42 = 2,942.48 : x
2. Step 2: Convert to fraction form
   5,180.42/7,148.42 = 2,942.48/x
3. Step 3: Cross multiply
   5,180.42x = 7,148.42 × 2,942.48
4. Step 4: Simplify right side
   5,180.42x = 21,034,082.88
5. Step 5: Solve for x
   x = 21,034,082.88/5,180.42
6. Step 6: Final answer
   x = 4,060.30