Finding the Fourth Proportional to 7,093.72, 9,789.78 and 3,949.93

Step by Step Solution

1. Step 1: Write the proportion equation
   7,093.72 : 9,789.78 = 3,949.93 : x
2. Step 2: Convert to fraction form
   7,093.72/9,789.78 = 3,949.93/x
3. Step 3: Cross multiply
   7,093.72x = 9,789.78 × 3,949.93
4. Step 4: Simplify right side
   7,093.72x = 38,668,945.72
5. Step 5: Solve for x
   x = 38,668,945.72/7,093.72
6. Step 6: Final answer
   x = 5,451.15