Which direction are you listing strings? 5-string standard is BEADG *low to high*
I'm guessing you want to know DGCF *low to high*?
Here's how I'd do it:
1. Use a tuner

(best $20 you'll ever spend, well maybe not quite...)
Failing that,
2a. Starting with the bass tuned EADG (low to high), play the open "D" and let it ring, and play the first harmonic at the 12th fret of the E string. Tune the E string down until these two tones are the same. Then, work your way up from the (now) D using the 5th/7th-fret harmonics like you do to (I can only assume) tune your bass currently.
2b. After doing that, plug into a tuner and check the tuning!