Finding the Fourth Proportional to 6,678.18, 9,215.46 and 3,694.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,678.18 : 9,215.46 = 3,694.05 : x
2. Step 2: Convert to fraction form
   6,678.18/9,215.46 = 3,694.05/x
3. Step 3: Cross multiply
   6,678.18x = 9,215.46 × 3,694.05
4. Step 4: Simplify right side
   6,678.18x = 34,042,370.01
5. Step 5: Solve for x
   x = 34,042,370.01/6,678.18
6. Step 6: Final answer
   x = 5,097.55