How did Ratanji's devotion to Gajanan Maharaj lead him to eventually meet Sai Baba?

This question contains a premise that is not supported by the provided text. Chapter 14 explains that Ratanji, a wealthy Parsi merchant, was advised to visit Sai Baba by a man named Das Ganu, in whom he had great faith. There is no mention of Ratanji having any prior devotion to Gajanan Maharaj or that this devotion played any role in his journey to Shirdi. The text clearly states that Ratanji revealed the 'secret of his heart' to Das Ganu, who then specifically directed him to seek blessings from Sai Baba to fulfill his desire for a son, as noted in Chapter 14.