Overnight leader Sweden's Caroline Hedwall struggled to a third-round 73 on a blustery day at Scandinavian Mixed on Saturday but managed to hold onto a share of the lead.
Hedwall, 32, shares the lead at 12-under in Gothenburg, Sweden with three other players following a tough day three that included four bogeys and a double bogey.
Scrivener and Enoch both carded 66, the lowest scores of the day, while Hewson birdied the final three holes to card 69.
Hedwall got off to a disappointing start, carding three bogeys with back-to-back bogeys on the opening two holes but recovered well thereafter.
The Swede led by two shots entering the final few holes, but a double-bogey at the par-4 17th meant she settled for a share of the lead with a par on the final hole.
Hedwall became the first woman to hold a solo lead at a European Tour event after she fired an impressive 64 on Friday.