Finding the Fourth Proportional to 41,567.89, 62,390.72 and 20,531.69

Step by Step Solution

1. Step 1: Write the proportion equation
   41,567.89 : 62,390.72 = 20,531.69 : x
2. Step 2: Convert to fraction form
   41,567.89/62,390.72 = 20,531.69/x
3. Step 3: Cross multiply
   41,567.89x = 62,390.72 × 20,531.69
4. Step 4: Simplify right side
   41,567.89x = 1,280,986,921.92
5. Step 5: Solve for x
   x = 1,280,986,921.92/41,567.89
6. Step 6: Final answer
   x = 30,816.74