Finding the Fourth Proportional to 22,654.50, 31,263.24 and 12,718.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,654.50 : 31,263.24 = 12,718.50 : x
2. Step 2: Convert to fraction form
   22,654.50/31,263.24 = 12,718.50/x
3. Step 3: Cross multiply
   22,654.50x = 31,263.24 × 12,718.50
4. Step 4: Simplify right side
   22,654.50x = 397,621,517.94
5. Step 5: Solve for x
   x = 397,621,517.94/22,654.50
6. Step 6: Final answer
   x = 17,551.55