Finding the Fourth Proportional to 10,966.56, 16,443.90 and 3,945.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,966.56 : 16,443.90 = 3,945.48 : x
2. Step 2: Convert to fraction form
   10,966.56/16,443.90 = 3,945.48/x
3. Step 3: Cross multiply
   10,966.56x = 16,443.90 × 3,945.48
4. Step 4: Simplify right side
   10,966.56x = 64,879,078.57
5. Step 5: Solve for x
   x = 64,879,078.57/10,966.56
6. Step 6: Final answer
   x = 5,916.08