Finding the Fourth Proportional to 6,805.72, 10,210.78 and 3,340.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,805.72 : 10,210.78 = 3,340.54 : x
2. Step 2: Convert to fraction form
   6,805.72/10,210.78 = 3,340.54/x
3. Step 3: Cross multiply
   6,805.72x = 10,210.78 × 3,340.54
4. Step 4: Simplify right side
   6,805.72x = 34,109,519.02
5. Step 5: Solve for x
   x = 34,109,519.02/6,805.72
6. Step 6: Final answer
   x = 5,011.89