14. Graph all of the trading strategies involving four assets. In particular, show:

(K) First asset: Buy a call with an exercise price of $25.73 for a call price of $7.92 and Second asset: Sell a call with an exercise price of $34.07 for a call price of $10.15 Third asset: Sell a call with an exercise price of $34.07 for a call price of $3.96 and Fourth asset: Buy a call with an exercise price of $41.83 for a call price of $9.23 = Buying a butterfly spread using calls.

(L) First asset: Write a call with an exercise price of $23.84 for a call price of $5.39 and Second asset: Buy a call with an exercise price of $36.19 for a call price of $6.98 Third asset: Buy a call with an exercise price of $36.19 for a call price of $3.36 and Fourth asset: Write a call with an exercise price of $47.28 for a call price of $8.34 = Writing a butterfly spread using calls.

(M) First asset: Buy a put with an exercise price of $29.33 for a put price of $4.59 and Second asset: Sell a put with an exercise price of $39.54 for a put price of $2.87 Third asset: Sell a put with an exercise price of $39.54 for a put price of $4.56 and Fourth asset: Buy a put with an exercise price of $54.78 for a put price of $10.37 = Buying a butterfly spread using puts.

(N) First asset: Write a put with an exercise price of $27.49 for a put price of $3.22 and Second asset: Buy a put with an exercise price of $41.38 for a put price of $5.39 Third asset: Buy a put with an exercise price of $41.38 for a put price of $2.74 and Fourth asset: Write a put with an exercise price of $52.86 for a put price of $9.49 = Writing a butterfly spread using puts.

Could you please help with these problems? I realize how the graph should look, but a little confused on the formula for calculating the fourth asset on them all.

Thank you :)