Answer
$5300\times10^{-1}$
$5.3\times10^{5}$
$0.53\times10^{7}$
$530\times10^{8}$
Work Step by Step
In order to answer this particular problem, the simplest method for sorting these numbers from least to greatest is to put them into proper scientific notation as such.
$5.3\times10^{6}$
$5.3\times10^{2}$
$5.3\times10^{5}$
$5.3\times10^{10}$
Then you can list them according to how large their exponent is since the constant is the same throughout. It's important to not put the answer as listed above, this is used to order their respective numbers in the given list, as shown in the answer.