Finding the Fourth Proportional to 52,234.79, 78,265 and 50,291.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,234.79 : 78,265 = 50,291.09 : x
2. Step 2: Convert to fraction form
   52,234.79/78,265 = 50,291.09/x
3. Step 3: Cross multiply
   52,234.79x = 78,265 × 50,291.09
4. Step 4: Simplify right side
   52,234.79x = 3,936,032,158.85
5. Step 5: Solve for x
   x = 3,936,032,158.85/52,234.79
6. Step 6: Final answer
   x = 75,352.69