Finding the Fourth Proportional to 5,151.26, 7,108.72 and 2,793.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,151.26 : 7,108.72 = 2,793.40 : x
2. Step 2: Convert to fraction form
   5,151.26/7,108.72 = 2,793.40/x
3. Step 3: Cross multiply
   5,151.26x = 7,108.72 × 2,793.40
4. Step 4: Simplify right side
   5,151.26x = 19,857,498.45
5. Step 5: Solve for x
   x = 19,857,498.45/5,151.26
6. Step 6: Final answer
   x = 3,854.88