Finding the Fourth Proportional to 5,147.49, 7,103.55 and 2,789.62

Step by Step Solution

1. Step 1: Write the proportion equation
   5,147.49 : 7,103.55 = 2,789.62 : x
2. Step 2: Convert to fraction form
   5,147.49/7,103.55 = 2,789.62/x
3. Step 3: Cross multiply
   5,147.49x = 7,103.55 × 2,789.62
4. Step 4: Simplify right side
   5,147.49x = 19,816,205.15
5. Step 5: Solve for x
   x = 19,816,205.15/5,147.49
6. Step 6: Final answer
   x = 3,849.68