Solve Addition: 46891 + 27108 in Vertical Format

To solve this addition problem, follow these steps:

We'll first perform vertical addition with the given numbers:

• 46891
• +27108

Align the numbers vertically, ensuring each digit lines up with the same place value:

$\begin{array}{c}
    & 4 & 6 & 8 & 9 & 1 \\
  + & 2 & 7 & 1 & 0 & 8 \\
  \hline
\end{array}$

Now, we add each column from right to left:
1. Units place: $1 + 8 = 9$. Write 9.
2. Tens place: $9 + 0 = 9$. Write 9.
3. Hundreds place: $8 + 1 = 9$. Write 9.
4. Thousands place: $6 + 7 = 13$. Write 3 and carry over 1 to the ten-thousands place.
5. Ten-thousands place: $4 + 2 + 1 \text{ (carry over)} = 7$. Write 7.

The result is formed as:

$\begin{array}{c}
    & 7 & 3 & 9 & 9 & 9 \\
\end{array}$
\)

Thus, the solution to the problem is $73999$.