What is the lowest average parish size with 47.2% of adherents and 4,936 regular attendees?
CREATE TABLE "by_jurisdiction_in_the_usa" (
  "adherents" real,
  "regular_attendees" real,
  "pct_of_adherents" text,
  "monasteries" real,
  "parishes" real,
  "average_parish_size" real
);
SELECT MIN("average_parish_size") FROM "by_jurisdiction_in_the_usa" WHERE "pct_of_adherents"='47.2%' AND "regular_attendees">'4,936';