Finding the Fourth Proportional to 7,183.89, 10,780.29 and 2,805.03

Step by Step Solution

1. Step 1: Write the proportion equation
   7,183.89 : 10,780.29 = 2,805.03 : x
2. Step 2: Convert to fraction form
   7,183.89/10,780.29 = 2,805.03/x
3. Step 3: Cross multiply
   7,183.89x = 10,780.29 × 2,805.03
4. Step 4: Simplify right side
   7,183.89x = 30,239,036.86
5. Step 5: Solve for x
   x = 30,239,036.86/7,183.89
6. Step 6: Final answer
   x = 4,209.28