Finding the Fourth Proportional to 22,300.44, 30,769.79 and 12,863.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.44 : 30,769.79 = 12,863.54 : x
2. Step 2: Convert to fraction form
   22,300.44/30,769.79 = 12,863.54/x
3. Step 3: Cross multiply
   22,300.44x = 30,769.79 × 12,863.54
4. Step 4: Simplify right side
   22,300.44x = 395,808,206.29
5. Step 5: Solve for x
   x = 395,808,206.29/22,300.44
6. Step 6: Final answer
   x = 17,748.90