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