In terms of the combined consumers sales, Dell is probably #3.
The revenue Dell pulled from their consumer division (which includes desktop/laptops/thin-clients/mobile devices and so on) is $8.9 billion.
> End User Computing revenue was $8.9 billion in the quarter, a 9 percent decrease. Operating income for the quarter was $224 million, a 65 percent decrease. Dell desktop and thin-client revenue declined 2 percent, mobility revenue declined 16 percent, and software from third parties and peripherals revenue declined 6 percent.
HP/Lenovo have the top two spots, they're selling tens of millions per quarter. Apple barely breaks 5 million.
Apple doesn't have great business nor governmental support, which eliminates them from being considered at thousands of companies.