Question

What is the correct way using commas to write the sentence Harrison danced with the beautiful graceful ballerina.

Answer 1

In my opinion there should be an and in the sentence.
Harrison danced with the beautiful and graceful ballerina. 
~now if you had 3 adjs. then there'll be a comma.
~~example: the beautiful, graceful and elegant ballerina 

Answer 2

Answer:

The correct way to write this sentence is:

Harrison danced with the beautiful, graceful ballerina.

Hope this helps!