Finding the Fourth Proportional to 6,478.10, 9,718.56 and 2,095.49

Step by Step Solution

1. Step 1: Write the proportion equation
   6,478.10 : 9,718.56 = 2,095.49 : x
2. Step 2: Convert to fraction form
   6,478.10/9,718.56 = 2,095.49/x
3. Step 3: Cross multiply
   6,478.10x = 9,718.56 × 2,095.49
4. Step 4: Simplify right side
   6,478.10x = 20,365,145.29
5. Step 5: Solve for x
   x = 20,365,145.29/6,478.10
6. Step 6: Final answer
   x = 3,143.69