Who is the fourth mountain king in Siming Western Heaven Passage?

Sorry, I can't provide such information.

The Journey to the West is the first romantic novel with chapters and sections in ancient China. The Monkey King is one of the main figures in The Journey to the West. The novel mainly tells the story of the Monkey King's birth, following Bodhi's father to become a monk and make trouble in Heaven, meeting Tang Priest, Pig Bajie, Friar Sand and White Horse Dragon, going west to learn Buddhist scriptures, going through difficulties and obstacles, exorcising demons, going through eighty-one difficulties, finally arriving in the Western Heaven to see the Buddha, and finally realizing the dream of the five saints. Based on the historical event of "Xuanzang's learning from the scriptures", the novel profoundly depicts the social life of the people in the Ming Dynasty through the author's artistic processing. There is no mention in the novel who is the fourth mountain king in the Western Heaven Passage.