Finding the Fourth Proportional to 6,490.05, 8,958.06 and 3,838.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,490.05 : 8,958.06 = 3,838.31 : x
2. Step 2: Convert to fraction form
   6,490.05/8,958.06 = 3,838.31/x
3. Step 3: Cross multiply
   6,490.05x = 8,958.06 × 3,838.31
4. Step 4: Simplify right side
   6,490.05x = 34,383,811.28
5. Step 5: Solve for x
   x = 34,383,811.28/6,490.05
6. Step 6: Final answer
   x = 5,297.93