Question: What is the highest number supporting prohibition in British Columbia when the percent opposing is more than 10.8, the percent supporting is less than 72.2, number against is less than 4,756?
SQL: SELECT MAX(for_prohibition) FROM table_name_43 WHERE percent_against > 10.8 AND percent_for < 72.2 AND jurisdiction = "british columbia" AND against_prohibition < 4 OFFSET 756