Finding the Fourth Proportional to 80,793.59, 120,962.54 and 42,756.70

Step by Step Solution

1. Step 1: Write the proportion equation
   80,793.59 : 120,962.54 = 42,756.70 : x
2. Step 2: Convert to fraction form
   80,793.59/120,962.54 = 42,756.70/x
3. Step 3: Cross multiply
   80,793.59x = 120,962.54 × 42,756.70
4. Step 4: Simplify right side
   80,793.59x = 5,171,959,198.24
5. Step 5: Solve for x
   x = 5,171,959,198.24/80,793.59
6. Step 6: Final answer
   x = 64,014.48