Q:

A Multilingual Meal

I came up with this one many moons ago but just now got around to sharing it. 
You're going out to brunch with your polyglot friend, and, when you ask him what he would like, he says, "I'll have the forty seven point one two four."  What is it he wants? 

A:

If it was my friend, I'd serve him a big fat

 Quince pie.  
 47.124 is 15*pi (pie).  15 in French is Quinze (quince)

