Would it not be greatly dependant on how far the project gets in that initial funding. The projects that overshoot in the final days are generally ones that are 60-80% funded.
Assuming that the linear model holds until the last few days and then you get an upturn equal to the initial contributions, then you'd be looking at something like $22-23 million. Well, I'm just measuring it on my screen with my hands to get that, but that'd be my prediction based on what little I know of these sorts of fundraising thingies, assuming it behaves in the same manner as they did. ^^;