Using the Law of Sines, we have

sin P / 47.6 = sin 73 / 68 multiply both sides by 47.6

sin P = ( 47.6 sin (73) / 68 )

Take the sine inverse to find P

arcsin ( 47.6 sin (73) / 68 ) = P ≈ 42.02°

Using the Law of Cosines

d = sqrt [ 21^2 + 27^2 - 2(21)(27)cos(25) ] ≈ 11.93