Finding the Fourth Proportional to 68,942.56, 95,138.22 and 42,129.94

Step by Step Solution

1. Step 1: Write the proportion equation
   68,942.56 : 95,138.22 = 42,129.94 : x
2. Step 2: Convert to fraction form
   68,942.56/95,138.22 = 42,129.94/x
3. Step 3: Cross multiply
   68,942.56x = 95,138.22 × 42,129.94
4. Step 4: Simplify right side
   68,942.56x = 4,008,167,500.31
5. Step 5: Solve for x
   x = 4,008,167,500.31/68,942.56
6. Step 6: Final answer
   x = 58,137.78