Plans for the world's oldest surviving such vessel to make the journey were on hold because payment was delayed by the recent election in Australia.
Now the Australian Secretary for the Environment Simon Birmingham has agreed to give $850,000 (£507,000) to pay for its transfer to Adelaide. The clipper, built in 1864 to carry passengers and cargo to Adelaide and formerly known as The Carrick, left Irvine, North Ayrshire, last month.
Scottish Culture Secretary Fiona Hyslop said: "We now look forward to the opportunities for shared culture, history, tourism and educational opportunities with Scotland, Sunderland and South Australia the transfer of the City of Adelaide will bring."
Mr Birmingham said: "The City of Adelaide is part of our history and is of significance particularly to the many South Australians whose family members first reached our shores on it.."