Costa – no sour grapes from me either, but your question was answered by Stevecro way back in post #3, but to reiterate, there is no provision for votes by proxy at Executive Committee Meetings, and Members are elected by the Owners Corporation at General Meetings.
So even though, as Jimmy foreshadowed in post #5, the remaining Members of your Executive Committee rushed to elect anyone but you to the empty chair, that process was contrary to the Act, Mr X is not a Member, you should at least inform your Secretary of that fact, and perhaps reconsider proceedings under Sect 138.