28.—Where, of three or more concurrent wrongdoers, judgment for contribution is given in favour of one against two or more, the claimant, at any time within the period limited by law for the enforcement of judgments and upon proof that, after taking reasonable steps, he has failed to obtain satisfaction of any judgment in whole or in part, shall have liberty to apply for secondary judgments having the effect of distributing the deficiency among the other defendants in such proportions as may be just and equitable.