Finding the Fourth Proportional to 6,405.71, 8,839.82 and 4,049.79

Step by Step Solution

1. Step 1: Write the proportion equation
   6,405.71 : 8,839.82 = 4,049.79 : x
2. Step 2: Convert to fraction form
   6,405.71/8,839.82 = 4,049.79/x
3. Step 3: Cross multiply
   6,405.71x = 8,839.82 × 4,049.79
4. Step 4: Simplify right side
   6,405.71x = 35,799,394.39
5. Step 5: Solve for x
   x = 35,799,394.39/6,405.71
6. Step 6: Final answer
   x = 5,588.67