Finding the Fourth Proportional to 6,444.38, 9,665.28 and 3,155.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,444.38 : 9,665.28 = 3,155.42 : x
2. Step 2: Convert to fraction form
   6,444.38/9,665.28 = 3,155.42/x
3. Step 3: Cross multiply
   6,444.38x = 9,665.28 × 3,155.42
4. Step 4: Simplify right side
   6,444.38x = 30,498,017.82
5. Step 5: Solve for x
   x = 30,498,017.82/6,444.38
6. Step 6: Final answer
   x = 4,732.50