Finding the Fourth Proportional to 22,586.50, 31,169.37 and 12,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,586.50 : 31,169.37 = 12,650.50 : x
2. Step 2: Convert to fraction form
   22,586.50/31,169.37 = 12,650.50/x
3. Step 3: Cross multiply
   22,586.50x = 31,169.37 × 12,650.50
4. Step 4: Simplify right side
   22,586.50x = 394,308,115.19
5. Step 5: Solve for x
   x = 394,308,115.19/22,586.50
6. Step 6: Final answer
   x = 17,457.69