Finding the Fourth Proportional to 22,801.50, 31,466.07 and 12,865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,801.50 : 31,466.07 = 12,865.50 : x
2. Step 2: Convert to fraction form
   22,801.50/31,466.07 = 12,865.50/x
3. Step 3: Cross multiply
   22,801.50x = 31,466.07 × 12,865.50
4. Step 4: Simplify right side
   22,801.50x = 404,826,723.59
5. Step 5: Solve for x
   x = 404,826,723.59/22,801.50
6. Step 6: Final answer
   x = 17,754.39