Finding the Fourth Proportional to 80,579.69, 120,827.78 and 42,649.52

Step by Step Solution

1. Step 1: Write the proportion equation
   80,579.69 : 120,827.78 = 42,649.52 : x
2. Step 2: Convert to fraction form
   80,579.69/120,827.78 = 42,649.52/x
3. Step 3: Cross multiply
   80,579.69x = 120,827.78 × 42,649.52
4. Step 4: Simplify right side
   80,579.69x = 5,153,246,908.49
5. Step 5: Solve for x
   x = 5,153,246,908.49/80,579.69
6. Step 6: Final answer
   x = 63,952.18