An astronaut takes a ball of mass $m$ from earth to space. He throws the ball into a circular orbit about earth at an altitude of 318.5 km. From earth's surface to the orbit, the change in total mechanical energy of the ball is $x \frac { \mathrm { GM } _ { \mathrm { e } } \mathrm { m } } { 21 \mathrm { R } _ { \mathrm { e } } }$. The value of $x$ is (take $\mathrm { R } _ { \mathrm { e } } = 6370 \mathrm {~km}$) :\\
(1) 10\\
(2) 12\\
(3) 9\\
(4) 11