Final answer:
The number of Wharton Alumni on the West Coast cannot be determined from the given information. Contacting Wharton's alumni association or reviewing their statistical reports would be the best approach to get accurate data.
Step-by-step explanation:
The exact number of Wharton Alumni living on the West Coast is not provided from the information available. Typically, such data would be maintained by the alumni association of the Wharton School of the University of Pennsylvania, and might not be publicly disclosed for privacy reasons. If an accurate number is needed, it would be advisable to contact the Wharton School's alumni association or refer to published statistical reports by the institution that might disaggregate alumni by geographic location.