Finding the Fourth Proportional to 22,805, 31,470.59 and 12,733.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,805 : 31,470.59 = 12,733.61 : x
2. Step 2: Convert to fraction form
   22,805/31,470.59 = 12,733.61/x
3. Step 3: Cross multiply
   22,805x = 31,470.59 × 12,733.61
4. Step 4: Simplify right side
   22,805x = 400,734,219.53
5. Step 5: Solve for x
   x = 400,734,219.53/22,805
6. Step 6: Final answer
   x = 17,572.21