Finding the Fourth Proportional to 5,147.27, 7,103.22 and 2,789.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,147.27 : 7,103.22 = 2,789.45 : x
2. Step 2: Convert to fraction form
   5,147.27/7,103.22 = 2,789.45/x
3. Step 3: Cross multiply
   5,147.27x = 7,103.22 × 2,789.45
4. Step 4: Simplify right side
   5,147.27x = 19,814,077.03
5. Step 5: Solve for x
   x = 19,814,077.03/5,147.27
6. Step 6: Final answer
   x = 3,849.43