A propane tank is in the shape generated by revolving the region enclosed by the right half of the graph of x^2+16y^2=100 and the y-axis
If x and y are measured in meters find the depth of the propane in the tank when it is filled to one-quarter of the tank's volume. (Round to 3 decimal places).
HINT: You will need to use a Graphing Calculator, Online Graphing Calculator, or Computer Algebra System to solve an equation towards the end of your solution to this problem.