Up to 12 hours before serving, put the rice, oats, barley and farina in a 6-to-10-cup rice cooker. Stir in the orange peel, cinnamon stick, sugar, salt and 5 cups water. Add the dried fruit.
Close the cooker, set the timer and program for the porridge cycle so that breakfast is ready at the desired time. (If you don't have a porridge setting on your rice cooker, program for 50 to 55 minutes.
Serve the warm porridge with nuts, syrup and/or milk, if desired.