Answer :
[tex] \frac{5}{13} = \frac{x}{672}
[/tex]
[tex]13x=5*672[/tex][tex]13x=3360[/tex]
x=258.5 L of natural oil
[tex]13x=5*672[/tex][tex]13x=3360[/tex]
x=258.5 L of natural oil