Finding the Fourth Proportional to 22,806.63, 31,469.31 and 12,734.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,806.63 : 31,469.31 = 12,734.69 : x
2. Step 2: Convert to fraction form
   22,806.63/31,469.31 = 12,734.69/x
3. Step 3: Cross multiply
   22,806.63x = 31,469.31 × 12,734.69
4. Step 4: Simplify right side
   22,806.63x = 400,751,750.02
5. Step 5: Solve for x
   x = 400,751,750.02/22,806.63
6. Step 6: Final answer
   x = 17,571.72