How to fill cell arrays with zeros to make them equal

M= 
{10x107} 
{10x108} 
{10x103} 
{10x105}

how to fill each cell with zeros to reach the size of the max length cell

Gives

   M= 
    {10x108} 
    {10x108} 
    {10x108} 
    {10x108}

Answer 1

[Matt J]

for i=1:numel(M)
 M{i}(end,108)=0;
end

[Walter Roberson]

That will write 0 at M{2}(10,108) but that should not be changed.

for i=1:numel(M)
 if size(M{i},2) < 108
   M{i}(end,108)=0;
 end
end