Finding the Fourth Proportional to 22,585.50, 31,167.99 and 12,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,585.50 : 31,167.99 = 12,649.50 : x
2. Step 2: Convert to fraction form
   22,585.50/31,167.99 = 12,649.50/x
3. Step 3: Cross multiply
   22,585.50x = 31,167.99 × 12,649.50
4. Step 4: Simplify right side
   22,585.50x = 394,259,489.51
5. Step 5: Solve for x
   x = 394,259,489.51/22,585.50
6. Step 6: Final answer
   x = 17,456.31