Find the chargers on the four capacitors of capacitances 1 μF, 2 μF, 3 μF

Find the chargers on the four capacitors of capacitances $1 \mu \mathrm{F}, 2 \mu \mathrm{F}, 3 \mu \mathrm{F}$ and $4 \mu \mathrm{F}$ shown in figure (32-E32).