A invests =20,000−5,000=15,000
B invest =20,000−4,000=16,000
C invests =20,000+6,000=26,000
Total investments =57,000
profit =69900
total percentage C invested
=(100×26,000)÷57000=45.61
Total profit including investment=57,000+69,900=126,900
Share of B in it =45.61×(1,26,900)÷100=57,879.09