Finding the Fourth Proportional to 5,100.39, 7,038.89 and 2,976.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.39 : 7,038.89 = 2,976.43 : x
2. Step 2: Convert to fraction form
   5,100.39/7,038.89 = 2,976.43/x
3. Step 3: Cross multiply
   5,100.39x = 7,038.89 × 2,976.43
4. Step 4: Simplify right side
   5,100.39x = 20,950,763.36
5. Step 5: Solve for x
   x = 20,950,763.36/5,100.39
6. Step 6: Final answer
   x = 4,107.68