Finding the Fourth Proportional to 144,982,783.98, 217,187,196.30 and 126,807,501.78

Step by Step Solution

1. Step 1: Write the proportion equation
   144,982,783.98 : 217,187,196.30 = 126,807,501.78 : x
2. Step 2: Convert to fraction form
   144,982,783.98/217,187,196.30 = 126,807,501.78/x
3. Step 3: Cross multiply
   144,982,783.98x = 217,187,196.30 × 126,807,501.78
4. Step 4: Simplify right side
   144,982,783.98x = 27,540,965,781,405,460
5. Step 5: Solve for x
   x = 27,540,965,781,405,460/144,982,783.98
6. Step 6: Final answer
   x = 189,960,249.25