Finding the Fourth Proportional to 50,421.48, 69,580.66 and 31,569

Step by Step Solution

1. Step 1: Write the proportion equation
   50,421.48 : 69,580.66 = 31,569 : x
2. Step 2: Convert to fraction form
   50,421.48/69,580.66 = 31,569/x
3. Step 3: Cross multiply
   50,421.48x = 69,580.66 × 31,569
4. Step 4: Simplify right side
   50,421.48x = 2,196,591,855.54
5. Step 5: Solve for x
   x = 2,196,591,855.54/50,421.48
6. Step 6: Final answer
   x = 43,564.60