Finding the Fourth Proportional to 22,726.67, 31,362.83 and 12,657.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,726.67 : 31,362.83 = 12,657.05 : x
2. Step 2: Convert to fraction form
   22,726.67/31,362.83 = 12,657.05/x
3. Step 3: Cross multiply
   22,726.67x = 31,362.83 × 12,657.05
4. Step 4: Simplify right side
   22,726.67x = 396,960,782.28
5. Step 5: Solve for x
   x = 396,960,782.28/22,726.67
6. Step 6: Final answer
   x = 17,466.74