An international company has
21,200
employees in one country. if this represents
33.9%
of the company's employees, how many employees does it have in total?

33.9% of what is 21200?

33.9% of X is 21200

Equation: P% * X = Y

Solving our equation for X
X = Y/P%
X = 21200/33.9%

Converting percent to decimal:
p = 33.9%/100 = 0.339

X = 21200/0.339 
X = 62536.8732

Furthermore you would want to round off the decimal to make it 62537 (thats if they ask you to round it off)