I'm going with the assumption that you mean volume 46.7 times the size of Earth.
I would say look at Neptune. It's radius is 15299 miles vs Earth's 3959 miles
this gives Neptune a volume of 8432960097242.145 cubic miles, vs. Earth at 146132702751.045
This makes Neptune 57.7 times the volume of Earth, a little bigger than your request.
Neptune's gravity is 11.15 m/s and Earth's is 9.8 m/s, So Neptune is %13 greater than Earth.
So as a rough estimate making a planet just like Neptune but at 46.7 times the size of earth should be pretty close. However, you really need to look at Neptune, since it is a gas giant and as such you will fall a long ways before you hit anything 'solid'...
To get a planet that large and 'solid' like earth, the gravity is going to be MUCH, MUCH more.
Kepler-10c! The largest rocky planet discovered to date. it is estimated that it is 15-19 times the mass of Earth, it has about 2.5 times the radius which is 12-15 times the volume of Earth.