Finding the Fourth Proportional to 10,965.38, 16,439.85 and 3,565.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,965.38 : 16,439.85 = 3,565.42 : x
2. Step 2: Convert to fraction form
   10,965.38/16,439.85 = 3,565.42/x
3. Step 3: Cross multiply
   10,965.38x = 16,439.85 × 3,565.42
4. Step 4: Simplify right side
   10,965.38x = 58,614,928.89
5. Step 5: Solve for x
   x = 58,614,928.89/10,965.38
6. Step 6: Final answer
   x = 5,345.46