。
She profited from that sound investment.
Literal
She [topic-は] that sound investment [from-から] profit [object-を] obtained.
健全 ('sound, wholesome, healthy') is a versatile virtue word — it applies just as well to a clean diet, an upright lifestyle, or, as here, financially solid behavior. The frame ~から~を得る ('obtain X from Y') is standard formal phrasing for returns, profits, or insights drawn from a source. Note that から, the everyday particle for 'because', here marks the source spatially rather than logically — Japanese gets a lot of mileage out of the same particle pulling double duty across physical and abstract domains.