'(= (Machine_Beam_Reaction_Rear_Right ?X) (/ (+ (* (Machine_Beam_Weight ?X) (Machine_Beam_Support_To_Machine_Beam_Center ?X)) (* (Machine_Beam_Impact_Load_Right ?X) (Machine_Sheave_Center_To_Front_Machine_Beam_Support ?X))) (Machine_Beam_Support_Distance ?X)))