。
She was obviously satisfied with the result.
Literal
She [topic-は] clearly that result [with-に] was-satisfied [progressive-ていた].
満足する ('to be satisfied') takes に for what one is satisfied with — a particle quirk similar to 会う. 満足していた is the past progressive: 'was in the state of being satisfied.' The adverb 明らかに modifies the whole predicate. Standard SVO-ish descriptive sentence.