If you are using Turbo Tax software, go to the forms mode>select open form>type in 4797. Now select enterable 4797 Sales of business property (page 2). Scroll down to part 3 to make your entry. This assuming this is a gain from a sale of a partnership interest.
If you are using the online version, you will not be able to enter this directly on a 4797. Here you will have to go to federal>wages and income>business items>sales of business property to record this. This will generate a 4797 with an entry on line 10.
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