\[\frac{2}{3}\sqrt{63} = \sqrt{\frac{4}{9} \cdot 63} = \sqrt{28};\ \]
\[4\sqrt{3} = \sqrt{16 \cdot 3} = \sqrt{48};\]
\[в\ порядке\ возрастания:\]
\[\frac{2}{3}\sqrt{63};\ \ \sqrt{29};\ \ 4\sqrt{3}.\]