Finding the Fourth Proportional to 5,147.34, 7,103.31 and 2,789.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,147.34 : 7,103.31 = 2,789.48 : x
2. Step 2: Convert to fraction form
   5,147.34/7,103.31 = 2,789.48/x
3. Step 3: Cross multiply
   5,147.34x = 7,103.31 × 2,789.48
4. Step 4: Simplify right side
   5,147.34x = 19,814,505.66
5. Step 5: Solve for x
   x = 19,814,505.66/5,147.34
6. Step 6: Final answer
   x = 3,849.47