Finding the Fourth Proportional to 6,393.94, 8,819.69 and 3,739.57

Step by Step Solution

1. Step 1: Write the proportion equation
   6,393.94 : 8,819.69 = 3,739.57 : x
2. Step 2: Convert to fraction form
   6,393.94/8,819.69 = 3,739.57/x
3. Step 3: Cross multiply
   6,393.94x = 8,819.69 × 3,739.57
4. Step 4: Simplify right side
   6,393.94x = 32,981,807.39
5. Step 5: Solve for x
   x = 32,981,807.39/6,393.94
6. Step 6: Final answer
   x = 5,158.29