NEW YORK–(BUSINESS WIRE)–Blackstone (NYSE:BX) today announced that private equity funds affiliated with Blackstone have entered into a definitive agreement to acquire Aon plc’s (NYSE:AON) technology-enabled benefits and human resources (“HR”) platform, currently part of Aon Hewitt, for cash consideration of up to $4.8 billion, including $4.3 billion at closing and additional consideration of up to $500 million based on future performance. The business is the largest benefits administration pl