Finding the Fourth Proportional to 67,156.43, 100,943.82 and 42,355.85

Step by Step Solution

1. Step 1: Write the proportion equation
   67,156.43 : 100,943.82 = 42,355.85 : x
2. Step 2: Convert to fraction form
   67,156.43/100,943.82 = 42,355.85/x
3. Step 3: Cross multiply
   67,156.43x = 100,943.82 × 42,355.85
4. Step 4: Simplify right side
   67,156.43x = 4,275,560,793.63
5. Step 5: Solve for x
   x = 4,275,560,793.63/67,156.43
6. Step 6: Final answer
   x = 63,665.70