CREATE TABLE table_17624 ("Number in series" FLOAT, "Broadcast Order" CLOB, "Title" CLOB, "Villain/s" CLOB, "U.S. Air Date" CLOB, "Production Code" CLOB)

What's the series number of the episode with a broadcast order s04 e07?
SELECT MAX("Number in series") FROM table_17624 WHERE "Broadcast Order" = 'S04 E07'
SELECT MAX("Number in series") FROM "table_17624" WHERE "Broadcast Order" = 'S04 E07'