Checking if number is in bottom three?

I need a way to check if a number is in the bottom three of a column in my database. For example, if I had a list of number in my table like this: 1 5 8 12 60 10000 10001 I might need to know if 5 was in the bottom three, which it would be. But if I checked 60, it wouldn't be. I could check the lowest number and add 3 to it, but it may have gaps. Any ideas? -- The above message is encrypted with double rot13 encoding. Any unauthorized attempt to decrypt it will be prosecuted to the full extent of the law.