Finding the Fourth Proportional to 50,564.78, 69,753.33 and 31,437.30

Step by Step Solution

1. Step 1: Write the proportion equation
   50,564.78 : 69,753.33 = 31,437.30 : x
2. Step 2: Convert to fraction form
   50,564.78/69,753.33 = 31,437.30/x
3. Step 3: Cross multiply
   50,564.78x = 69,753.33 × 31,437.30
4. Step 4: Simplify right side
   50,564.78x = 2,192,856,363.05
5. Step 5: Solve for x
   x = 2,192,856,363.05/50,564.78
6. Step 6: Final answer
   x = 43,367.27