Finding the Fourth Proportional to 22,730.23, 31,365.48 and 12,659.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,730.23 : 31,365.48 = 12,659.61 : x
2. Step 2: Convert to fraction form
   22,730.23/31,365.48 = 12,659.61/x
3. Step 3: Cross multiply
   22,730.23x = 31,365.48 × 12,659.61
4. Step 4: Simplify right side
   22,730.23x = 397,074,680.96
5. Step 5: Solve for x
   x = 397,074,680.96/22,730.23
6. Step 6: Final answer
   x = 17,469.01