Finding the Fourth Proportional to 2,613,317,389.18, 3,605,604,335.85 and 1,555,197,100.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613,317,389.18 : 3,605,604,335.85 = 1,555,197,100.54 : x
2. Step 2: Convert to fraction form
   2,613,317,389.18/3,605,604,335.85 = 1,555,197,100.54/x
3. Step 3: Cross multiply
   2,613,317,389.18x = 3,605,604,335.85 × 1,555,197,100.54
4. Step 4: Simplify right side
   2,613,317,389.18x = 5,607,425,408,808,372,224
5. Step 5: Solve for x
   x = 5,607,425,408,808,372,224/2,613,317,389.18
6. Step 6: Final answer
   x = 2,145,711,589.42