The given information is:
26.4% of all registered doctors were female
There were 59,600 female registered doctors (this is 26.4% of the total registered doctors).
Then to know what was the total number of registered doctors:
[tex]59600\times\frac{100\text{ \%}}{26.4\text{ \%}}=225758[/tex]Answer: There were 225,758 total registered doctors that year.