Finding the Fourth Proportional to 5,144.86, 7,099.94 and 2,906.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,144.86 : 7,099.94 = 2,906.78 : x
2. Step 2: Convert to fraction form
   5,144.86/7,099.94 = 2,906.78/x
3. Step 3: Cross multiply
   5,144.86x = 7,099.94 × 2,906.78
4. Step 4: Simplify right side
   5,144.86x = 20,637,963.59
5. Step 5: Solve for x
   x = 20,637,963.59/5,144.86
6. Step 6: Final answer
   x = 4,011.38