Finding the Fourth Proportional to 20,978,956,601.84, 31,456,942,815.48 and 10,331,767,597.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,978,956,601.84 : 31,456,942,815.48 = 10,331,767,597.98 : x
2. Step 2: Convert to fraction form
   20,978,956,601.84/31,456,942,815.48 = 10,331,767,597.98/x
3. Step 3: Cross multiply
   20,978,956,601.84x = 31,456,942,815.48 × 10,331,767,597.98
4. Step 4: Simplify right side
   20,978,956,601.84x = 325,005,822,512,486,023,168
5. Step 5: Solve for x
   x = 325,005,822,512,486,023,168/20,978,956,601.84
6. Step 6: Final answer
   x = 15,491,991,745.86