307777796774489-88665787556898+4556899

To solve the expression:

307777796774489 - 88665787556898 + 4556899

First, perform the subtraction:

307777796774489 - 88665787556898 = 219111009217591

Then, add the result to 4556899:

219111009217591 + 4556899 = 219111013774490

So, 307777796774489 - 88665787556898 + 4556899 = 219111013774490.