This question does have an answer, however, the courage required, is, to each his own. Oftentimes, men find the object of their desire, fearsome.
What you need to understand is, the girl you like is not your real fear. Your real fear is fear of rejection, fear of losing, and fear of commitment. All this things put together, suppress your desires. However, is life really lived, if you haven't tried to get what you covet? So, don't just give up yet. Here's some advice that you can use.
Before you drop the bomb, you need to give her some subtle hints. Popping the question, in a random way, can shock or upset her.
Flirting, for example, is a subtle hint. Put all the flirting tips and tricks that you've ever known to good use now. There are millions of flirting lines for men that can help you a great deal to do your groundwork. If she responds to your flirting, then she too is romantically inclined towards you.