Finding the Fourth Proportional to 12,978,447,351.73, 19,467,458,287.16 and 4,135,166,074.87

Step by Step Solution

1. Step 1: Write the proportion equation
   12,978,447,351.73 : 19,467,458,287.16 = 4,135,166,074.87 : x
2. Step 2: Convert to fraction form
   12,978,447,351.73/19,467,458,287.16 = 4,135,166,074.87/x
3. Step 3: Cross multiply
   12,978,447,351.73x = 19,467,458,287.16 × 4,135,166,074.87
4. Step 4: Simplify right side
   12,978,447,351.73x = 80,501,173,073,010,868,224
5. Step 5: Solve for x
   x = 80,501,173,073,010,868,224/12,978,447,351.73
6. Step 6: Final answer
   x = 6,202,681,329.39