12•3,44•5+43,6=

Let's solve the expression step by step.

1. Multiply: \( 12 \times 3 = 36 \)

   \( 44 \times 5 = 220 \)

2. Add the results along with 43.6: \( 36 + 220 + 43.6 = 36 + 220 + 43.6 \)

   First, add \( 36 + 220 = 256 \).

3. Then add \( 43.6 \): \( 256 + 43.6 = 299.6 \)

So, the final answer is \( 299.6 \).