To help in a fund raising drive for a hospital, Burt gave a pledge for $100,000 that provided, "In consideration of and to induce the subscription of others, I promise to pay to Mount Sinai Hospital of Greater Miami, Inc. the sum of $100,000 in ten installments." Burt made two installment payments of $10,000 each before his death. The hospital filed a claim for the unpaid balance against his estate. Is this a contract for which the estate is now liable? [Mount Sinai Hospital v. Jordan, 290 So.2d 484, Sup. Ct., Fla. (1974)]