I'll be flying in on the 'fourth'. [=the fourth day of the month]
He got a base hit in the 'fourth'. [=the fourth inning]
She drank a 'fourth' of the bottle.
(..) students signed up for it on the first day. God, if I was a drug dealer I couldn't give free drugs to people in one day. And this guy doesn't have three friends to rub together to make a fourth. All right. Yes, that's what we'll do, Mr. Hotchkiss. We'll put all this together (..)2010 The Social Network