Finding the Fourth Proportional to 6,486.38, 9,729.69 and 2,103.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,486.38 : 9,729.69 = 2,103.82 : x
2. Step 2: Convert to fraction form
   6,486.38/9,729.69 = 2,103.82/x
3. Step 3: Cross multiply
   6,486.38x = 9,729.69 × 2,103.82
4. Step 4: Simplify right side
   6,486.38x = 20,469,516.42
5. Step 5: Solve for x
   x = 20,469,516.42/6,486.38
6. Step 6: Final answer
   x = 3,155.77