Finding the Fourth Proportional to 1,619,633,235.06, 2,235,096,019.89 and 877,078,578.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,619,633,235.06 : 2,235,096,019.89 = 877,078,578.42 : x
2. Step 2: Convert to fraction form
   1,619,633,235.06/2,235,096,019.89 = 877,078,578.42/x
3. Step 3: Cross multiply
   1,619,633,235.06x = 2,235,096,019.89 × 877,078,578.42
4. Step 4: Simplify right side
   1,619,633,235.06x = 1,960,354,839,757,320,960
5. Step 5: Solve for x
   x = 1,960,354,839,757,320,960/1,619,633,235.06
6. Step 6: Final answer
   x = 1,210,369,605.49