documentclass{article}

usepackage{tocloft}
makeatletter
renewcommand@tocrmarg{15.55em} % versus 2.55em
makeatother

begin{document}

listoffigures


begin{figure}
caption{short text}
end{figure}

begin{figure}
caption{very long text very long text very long text very long text very long text very long text very long text}
end{figure}

end{document}