Based on the provided information, I estimated Benjamin's hourly rate at $50. This is a very conservative estimate, considering his internship experience and education. Interns in Business Development typically charge lower rates, around $25-$50 per hour, depending on the company and location. Since Benjamin is a recent graduate with a 4.63 GPA, he may be able to negotiate higher rates in the future. However, for an internship, this rate is reasonable.