So,
Xc = 1/2?fC.
Xc = 1/( 2 x 3.14 x 5000 x 0.01 x 10-6 ).
Xc = 3184.7.
Z = Sqrt( Xc2 + R2 ).
Z = Sqrt( 3184.72 + 50002 ).
Z = 5928 ?.