Find the index of the last non-zero element in each row of a given matrix?

For an arbitrary sized matrix x, how do I find the index of the last non-zero element in each row of a given matrix?

For example, for the matrix

x = [ 0 9 7 0 0 0; 5 0 0 6 0 3; 0 0 0 0 0 0; 8 0 4 2 1 0 ]

the vector [ 3 6 0 5 ] should be obtained.

arrays matlab matrix

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