Finding the Fourth Proportional to 6,918.28, 10,368.78 and 3,456.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,918.28 : 10,368.78 = 3,456.52 : x
2. Step 2: Convert to fraction form
   6,918.28/10,368.78 = 3,456.52/x
3. Step 3: Cross multiply
   6,918.28x = 10,368.78 × 3,456.52
4. Step 4: Simplify right side
   6,918.28x = 35,839,895.45
5. Step 5: Solve for x
   x = 35,839,895.45/6,918.28
6. Step 6: Final answer
   x = 5,180.46