Finding the Fourth Proportional to 5,150.54, 7,107.72 and 2,912.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,150.54 : 7,107.72 = 2,912.42 : x
2. Step 2: Convert to fraction form
   5,150.54/7,107.72 = 2,912.42/x
3. Step 3: Cross multiply
   5,150.54x = 7,107.72 × 2,912.42
4. Step 4: Simplify right side
   5,150.54x = 20,700,665.88
5. Step 5: Solve for x
   x = 20,700,665.88/5,150.54
6. Step 6: Final answer
   x = 4,019.13