Finding the Fourth Proportional to 10,965.60, 16,446.24 and 3,944.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,965.60 : 16,446.24 = 3,944.16 : x
2. Step 2: Convert to fraction form
   10,965.60/16,446.24 = 3,944.16/x
3. Step 3: Cross multiply
   10,965.60x = 16,446.24 × 3,944.16
4. Step 4: Simplify right side
   10,965.60x = 64,866,601.96
5. Step 5: Solve for x
   x = 64,866,601.96/10,965.60
6. Step 6: Final answer
   x = 5,915.46