Finding the Fourth Proportional to 22,871.43, 31,563.28 and 12,799.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,871.43 : 31,563.28 = 12,799.84 : x
2. Step 2: Convert to fraction form
   22,871.43/31,563.28 = 12,799.84/x
3. Step 3: Cross multiply
   22,871.43x = 31,563.28 × 12,799.84
4. Step 4: Simplify right side
   22,871.43x = 404,005,074.10
5. Step 5: Solve for x
   x = 404,005,074.10/22,871.43
6. Step 6: Final answer
   x = 17,664.18