Finding the Fourth Proportional to 5,147.70, 7,103.82 and 2,789.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,147.70 : 7,103.82 = 2,789.83 : x
2. Step 2: Convert to fraction form
   5,147.70/7,103.82 = 2,789.83/x
3. Step 3: Cross multiply
   5,147.70x = 7,103.82 × 2,789.83
4. Step 4: Simplify right side
   5,147.70x = 19,818,450.15
5. Step 5: Solve for x
   x = 19,818,450.15/5,147.70
6. Step 6: Final answer
   x = 3,849.96