Finding the Fourth Proportional to 6,906.61, 10,355.28 and 3,397.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,906.61 : 10,355.28 = 3,397.42 : x
2. Step 2: Convert to fraction form
   6,906.61/10,355.28 = 3,397.42/x
3. Step 3: Cross multiply
   6,906.61x = 10,355.28 × 3,397.42
4. Step 4: Simplify right side
   6,906.61x = 35,181,235.38
5. Step 5: Solve for x
   x = 35,181,235.38/6,906.61
6. Step 6: Final answer
   x = 5,093.85