Finding the Fourth Proportional to 6,678.10, 9,215.82 and 3,693.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,678.10 : 9,215.82 = 3,693.98 : x
2. Step 2: Convert to fraction form
   6,678.10/9,215.82 = 3,693.98/x
3. Step 3: Cross multiply
   6,678.10x = 9,215.82 × 3,693.98
4. Step 4: Simplify right side
   6,678.10x = 34,043,054.76
5. Step 5: Solve for x
   x = 34,043,054.76/6,678.10
6. Step 6: Final answer
   x = 5,097.72