Areas in a Quadrilateral
On triangle \(ABC\), points \(D\) and \(E\) are chosen on line segments \(AB\) and \(AC\), respectively. The lines \(CD\) and \(BE \) intersect at \(K \), within triangle \(ABC\). If \( [DKB]=56, [BKC]=84\) and \( [KEC]=90\), what is \([ADKE]\)?
Note: \([PQRS]\) denotes the area of the figure \(PQRS\).