Answer:
The answer is "11.4".
Explanation:
Please find the complete question in the attached file.
The point of breakthrough financial:
[tex]\to \frac{ ( \frac{(227000 \times 11.5 \%}{( \frac{1-1}{1.115^4})}-\frac{227000}{4})}{\frac{(1-23 \%)+842900+ \frac{227000}{4})}{(47-23)}}\\\\\\\to \frac{ ( \frac{(26,105}{( \frac{0}{1.5456084})}-56,750)}{\frac{(0.77)+842900+56,750)}{(24)}}[/tex]
[tex]\to 38416.19\\\\\to DOL= \frac{38416.19 \times (47-23)}{(38416.19 \times (47-23)-842900)} \\\\[/tex]
[tex]=11.4[/tex]