Finding the Fourth Proportional to 72,519.37, 100,078.35 and 42,306.73

Step by Step Solution

1. Step 1: Write the proportion equation
   72,519.37 : 100,078.35 = 42,306.73 : x
2. Step 2: Convert to fraction form
   72,519.37/100,078.35 = 42,306.73/x
3. Step 3: Cross multiply
   72,519.37x = 100,078.35 × 42,306.73
4. Step 4: Simplify right side
   72,519.37x = 4,233,987,732.30
5. Step 5: Solve for x
   x = 4,233,987,732.30/72,519.37
6. Step 6: Final answer
   x = 58,384.23