Finding the Fourth Proportional to 144,839,028.78, 199,881,647.82 and 78,763,391.46

Step by Step Solution

1. Step 1: Write the proportion equation
   144,839,028.78 : 199,881,647.82 = 78,763,391.46 : x
2. Step 2: Convert to fraction form
   144,839,028.78/199,881,647.82 = 78,763,391.46/x
3. Step 3: Cross multiply
   144,839,028.78x = 199,881,647.82 × 78,763,391.46
4. Step 4: Simplify right side
   144,839,028.78x = 15,743,356,472,916,514
5. Step 5: Solve for x
   x = 15,743,356,472,916,514/144,839,028.78
6. Step 6: Final answer
   x = 108,695,540.18