Finding the Fourth Proportional to 140,687.78, 194,141.48 and 77,013.27

Step by Step Solution

1. Step 1: Write the proportion equation
   140,687.78 : 194,141.48 = 77,013.27 : x
2. Step 2: Convert to fraction form
   140,687.78/194,141.48 = 77,013.27/x
3. Step 3: Cross multiply
   140,687.78x = 194,141.48 × 77,013.27
4. Step 4: Simplify right side
   140,687.78x = 14,951,469,832.37
5. Step 5: Solve for x
   x = 14,951,469,832.37/140,687.78
6. Step 6: Final answer
   x = 106,274.12