This is the 2649th most frequent Russian word.
финансовую
"Financial"
In this sentence, 'финансовую' as an adjective modifies the noun 'поддержку' (support), specifying its nature as financial.
Он принял финансовую поддержку от своих коллег.
He accepted financial support from his colleagues.
Here, 'финансовую' describes 'проверку' (audit), indicating that it pertains to finances.
Компания провела финансовую проверку перед началом проекта.
The company conducted a financial audit before starting the project.
'Финансовую' is part of 'финансовая стабильность' (financial stability), referring to the financial aspect of stability in a logical agreement between adjective and noun.