Cosmopolitan Cocktail #5

1 1/2 oz Smirnoff vodka
1 1/2 oz triple sec
1/2 oz cranberry juice
1/2 oz fresh lime juice
1 orange

Combine the Smirnoff vodka, triple sec, fresh lime juice and cranberry juice in a cocktail shaker half-filled with ice cubes. Shake well and strain into a frosted cocktail glass. Rub the rim with orange zest (if desired) and drop it into the glass. Serve.