Cost per person to take the Central Pacific Rail Road

I am a senior at Afton Central School. I am currently working on a project, as part of a class I am in, in which I am have to compile the total expenditures of Phileas Fogg, in the classic novel Around the World in Eighty Days. As you can imagine, the research is not easy. I have spent days and days following the paths of companies dating back to the 1870’s, seeing what happened to them and how I could contact their modern day equivalent. I was wondering if you could tell me how much it would cost (per person) to take the Central Pacific Rail Road from San Francisco, California to Omaha, Nebraska, in or around 1872.