Answer
See below
Work Step by Step
The volume formula: $V=ax^3 $ when solving for $x$: $x=(\frac{V}{a})^{\frac{1}{3}}$
The edge length x for the Tetrahedron: $x=(\frac{4096}{0.118})^{\frac{1}{3}}\approx32.62$
The edge length x for the Octahedron: $x=(\frac{4096}{0.471})^{\frac{1}{3}}\approx20.56$
The edge length x for the Dodecahedron: $x=(\frac{4096}{7.663})^{\frac{1}{3}}\approx8.12$
The edge length x for the Icosahedron: $x=(\frac{4096}{2.182})^{\frac{1}{3}}\approx12.34$