Decimal:

$(41.62)_{8}$

$=4*8^1 + 1*8^0 . 6* \frac{1}{8} + 2* \frac{1}{8^2}$

$=33.78125$

$(43.62)_{8}=(33.78125)_{10}$

Binary:

$\hspace{1cm} 4 \hspace{1cm} 1 \hspace{1.1cm} 6 \hspace{1cm} 2$

$\hspace{.8cm} 100 \hspace{.6cm} 001\hspace{.2cm} . \hspace{.3cm} 110 \hspace{.6cm} 010$

$(41.62)_{8} = (00100001.11001000)_{2}$

Hexadecimal:

$(41.62)_{8}$

$= 100\hspace{.2cm} 001 \hspace{.2cm}.\hspace{.2cm}110\hspace{.2cm}010$

$\underbrace{0010} \underbrace{0001}. \underbrace{1100} \underbrace{1000}$

$\hspace{.3cm}2\hspace{.75cm}1\hspace{.7cm}12\hspace{.6cm}8$

$\hspace{.3cm}\downarrow\hspace{.75cm}\downarrow\hspace{.75cm}\downarrow\hspace{.7cm}\downarrow$

$\hspace{.3cm}2\hspace{.75cm}1\hspace{.7cm}C\hspace{.6cm}8$

$(41.62)_{8} = (21C8)_{16}$