It really depends upon why it cracked, how big the crack is, whether it is still moving, was there displacement (i.e. is one side of the crack higher than the other or did it just separate) etc. If the cause of the cause of the crack (say a big tree planted to close to the house-probably not the cause here) was removed it could be a few thousand to fill with epoxy. If the land under the house moved it depends upon why and whether it will keep moving. In these cases you need an engineer to come in and evaluate the situation. That would cost you about $700.
