The explicit formula for the geometric sequence is given as:

$a_n = 5 \cdot 2^{n-1}$

We are tasked with finding the fourth term of the sequence, which means we need to compute $a_4$.

Substitute $n = 4$ into the formula:

$a_4 = 5 \cdot 2^{4-1} = 5 \cdot 2^3 = 5 \cdot 8 = 40$

So, the fourth term of the sequence is 40.

Would you like a detailed explanation of how geometric sequences work? Here are 5 related questions that may help expand your understanding:

1. How do you find the common ratio in a geometric sequence?
2. What is the general formula for the nth term of a geometric sequence?
3. How can you determine the sum of the first $n$ terms of a geometric sequence?
4. What is the difference between geometric and arithmetic sequences?
5. How would you find the fifth term of this same sequence?

Tip: Always ensure to substitute the correct value of $n$ in the explicit formula to find the desired term in any sequence.