Finding the Fourth Proportional to 80,423.73, 120,594.38 and 42,493.37

Step by Step Solution

1. Step 1: Write the proportion equation
   80,423.73 : 120,594.38 = 42,493.37 : x
2. Step 2: Convert to fraction form
   80,423.73/120,594.38 = 42,493.37/x
3. Step 3: Cross multiply
   80,423.73x = 120,594.38 × 42,493.37
4. Step 4: Simplify right side
   80,423.73x = 5,124,461,396.79
5. Step 5: Solve for x
   x = 5,124,461,396.79/80,423.73
6. Step 6: Final answer
   x = 63,718.28