Heat Transfer Question.

Please answer it in clear hand writing or any suitable method. thank you.

Two thin radiation shields (Shield 3 and Shield 4) with emmisivities of 3=0.18 and 4=0.11 on both sides are placed between two very large parallel plates in one of unit operation processes in petrochemical industry. Table below shows the temperature and emissivity of the walls which in steady state operation. Determine the temperature of both radiation shields