Finding the Fourth Proportional to 7,089.13, 9,781.59 and 3,944.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,089.13 : 9,781.59 = 3,944.71 : x
2. Step 2: Convert to fraction form
   7,089.13/9,781.59 = 3,944.71/x
3. Step 3: Cross multiply
   7,089.13x = 9,781.59 × 3,944.71
4. Step 4: Simplify right side
   7,089.13x = 38,585,535.89
5. Step 5: Solve for x
   x = 38,585,535.89/7,089.13
6. Step 6: Final answer
   x = 5,442.92