Let share of each friend = x.

Then, share of each daughter = 4x.

and share of each son = 5x.

According to the question.

\( \Large 5 \times 5x + 4 \times 4x + 2 \times x = 17200 \)

=> \( \Large 25x + 16x + 2x = 17200 \)

=> 43x = 17200

Therefore, x = \( \Large \frac{17200}{43} \) = Rs.400

Share of each daughter = 4 X 400 = 1600