Finding the Fourth Proportional to 42,856.38, 59,168.09 and 33,939.90

Step by Step Solution

1. Step 1: Write the proportion equation
   42,856.38 : 59,168.09 = 33,939.90 : x
2. Step 2: Convert to fraction form
   42,856.38/59,168.09 = 33,939.90/x
3. Step 3: Cross multiply
   42,856.38x = 59,168.09 × 33,939.90
4. Step 4: Simplify right side
   42,856.38x = 2,008,159,057.79
5. Step 5: Solve for x
   x = 2,008,159,057.79/42,856.38
6. Step 6: Final answer
   x = 46,857.88