Respuesta :

Given

The proportion is given

[tex]\frac{2}{7}=\frac{12}{x}[/tex]

After cross product, the proportion becomes

[tex]2x=84[/tex]Explanation

To determine x,

[tex]\begin{gathered} 2x=84 \\ x=42 \end{gathered}[/tex]Answer

Hence the value of x is 42.