we know that
The dilation is a no-rigid transformation that produce similar figures
That means, that the correspondind sides are proportional and the corresponding angles are congruent
The length side of the image is equal to the scale factor multiplied by the length of the preimage
the scale factor is 4 (given)
so
Side B=17 in ---------> image side B'=17(4)=68 in
Side C =18 in ---------> Side C'=18(4)=72 in
Side D=23 in -----------> Side D'=23(4)=92 in
the angles are congruent
Angle B=55 degrees -----------> Angle B'=55 degrees
Angle C=120 degrees ---------> Angle C'=120 degrees
Angle D=140 degrees -------> Angle D'=140 degrees