Finding the Fourth Proportional to 144,493,141.87, 199,401,057.82 and 78,413,625.78

Step by Step Solution

1. Step 1: Write the proportion equation
   144,493,141.87 : 199,401,057.82 = 78,413,625.78 : x
2. Step 2: Convert to fraction form
   144,493,141.87/199,401,057.82 = 78,413,625.78/x
3. Step 3: Cross multiply
   144,493,141.87x = 199,401,057.82 × 78,413,625.78
4. Step 4: Simplify right side
   144,493,141.87x = 15,635,759,928,033,622
5. Step 5: Solve for x
   x = 15,635,759,928,033,622/144,493,141.87
6. Step 6: Final answer
   x = 108,211,086.88