Given that $R_1 = 3 k\Omega, R_2 = 6 k\Omega, R_3 = 2 k\Omega, R_4 = 8 k\Omega, R_5 = 10 k\Omega, I_A = 13 mA, I_B = 24 mA$ and $I_C = 55 mA$, find the following currents.

$I_1 =$ $mA$
$I_2 =$ $mA$
$I_3 =$ $mA$
$I_4 =$ $mA$
$I_5 =$ $mA$
$I_6 =$ $mA$