Finding the Fourth Proportional to 3,806.06, 5,701.34 and 3,105.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,806.06 : 5,701.34 = 3,105.78 : x
2. Step 2: Convert to fraction form
   3,806.06/5,701.34 = 3,105.78/x
3. Step 3: Cross multiply
   3,806.06x = 5,701.34 × 3,105.78
4. Step 4: Simplify right side
   3,806.06x = 17,707,107.75
5. Step 5: Solve for x
   x = 17,707,107.75/3,806.06
6. Step 6: Final answer
   x = 4,652.35