Please show clear work

Shaquila bought a house 15 years ago for $100,000. She married Marco 5 years ago when the house was worth $250,000. They live in Arizona a community property state. She continued to own the house in her name solely after marriage. Assume Shaquila died today and left her entire estate to her son Jorge. The property is valued at $590,496 today. What is Jorge's basis in the house after Shaquila's death? Remember Shaquila lives in a community property state. However, she bought the house prior to marriage so the house is considered her sole property. The entire house value would receive a step up and transfer to her son