Finding the Fourth Proportional to 73,942.62, 102,040.59 and 40,408.62

Step by Step Solution

1. Step 1: Write the proportion equation
   73,942.62 : 102,040.59 = 40,408.62 : x
2. Step 2: Convert to fraction form
   73,942.62/102,040.59 = 40,408.62/x
3. Step 3: Cross multiply
   73,942.62x = 102,040.59 × 40,408.62
4. Step 4: Simplify right side
   73,942.62x = 4,123,319,425.89
5. Step 5: Solve for x
   x = 4,123,319,425.89/73,942.62
6. Step 6: Final answer
   x = 55,763.77