Finding the Fourth Proportional to 245,608,255.69, 338,969,114.03 and 139,787,399.82

Step by Step Solution

1. Step 1: Write the proportion equation
   245,608,255.69 : 338,969,114.03 = 139,787,399.82 : x
2. Step 2: Convert to fraction form
   245,608,255.69/338,969,114.03 = 139,787,399.82/x
3. Step 3: Cross multiply
   245,608,255.69x = 338,969,114.03 × 139,787,399.82
4. Step 4: Simplify right side
   245,608,255.69x = 47,383,611,068,469,976
5. Step 5: Solve for x
   x = 47,383,611,068,469,976/245,608,255.69
6. Step 6: Final answer
   x = 192,923,527.49