Finding the Fourth Proportional to 6,490.38, 8,957.89 and 3,839.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,490.38 : 8,957.89 = 3,839.10 : x
2. Step 2: Convert to fraction form
   6,490.38/8,957.89 = 3,839.10/x
3. Step 3: Cross multiply
   6,490.38x = 8,957.89 × 3,839.10
4. Step 4: Simplify right side
   6,490.38x = 34,390,206.71
5. Step 5: Solve for x
   x = 34,390,206.71/6,490.38
6. Step 6: Final answer
   x = 5,298.64