Verified answer

1 1/12 : 5 2/3 = 2/3Х : 24

13/12 : 17/3  = 2/3Х :24    по правилу пропорции

17/3 х(2/3Х) = 13/12 х 24

34/9Х = 26

 Х = 26 :34/9 = 26 х 9/34

Х = 117/17 = 6 15/17