Share of Profit of Z = \(\frac{1}{6}\)
Share of profit of X and Y = 1 –\(\frac{1}{6} = \frac{5}{6}\)
Total capital of X & Y= 50,000+ 40,000 = 90,000
Capital of X and Y for \(\frac{5}{6}\) share = 90,000
∴ Total capital of X, Y and Z = 90,000× \(\frac{6}{5}\) = 1,08,000
∴ Capital to be brought in by Z = 1,08,000 – 90,000 or 1,08,000 × \(\frac{1}{6}\) = 18,000.