Finding the Fourth Proportional to 140,684.78, 194,137.34 and 77,010.27

Step by Step Solution

1. Step 1: Write the proportion equation
   140,684.78 : 194,137.34 = 77,010.27 : x
2. Step 2: Convert to fraction form
   140,684.78/194,137.34 = 77,010.27/x
3. Step 3: Cross multiply
   140,684.78x = 194,137.34 × 77,010.27
4. Step 4: Simplify right side
   140,684.78x = 14,950,568,585.43
5. Step 5: Solve for x
   x = 14,950,568,585.43/140,684.78
6. Step 6: Final answer
   x = 106,269.98