Finding the Fourth Proportional to 5,100.96, 7,039.55 and 2,976.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.96 : 7,039.55 = 2,976.15 : x
2. Step 2: Convert to fraction form
   5,100.96/7,039.55 = 2,976.15/x
3. Step 3: Cross multiply
   5,100.96x = 7,039.55 × 2,976.15
4. Step 4: Simplify right side
   5,100.96x = 20,950,756.73
5. Step 5: Solve for x
   x = 20,950,756.73/5,100.96
6. Step 6: Final answer
   x = 4,107.22