Finding the Fourth Proportional to 5,144.72, 7,099.67 and 2,906.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,144.72 : 7,099.67 = 2,906.57 : x
2. Step 2: Convert to fraction form
   5,144.72/7,099.67 = 2,906.57/x
3. Step 3: Cross multiply
   5,144.72x = 7,099.67 × 2,906.57
4. Step 4: Simplify right side
   5,144.72x = 20,635,712.85
5. Step 5: Solve for x
   x = 20,635,712.85/5,144.72
6. Step 6: Final answer
   x = 4,011.05