Finding the Fourth Proportional to 22,306.84, 30,786.18 and 12,875.41

Step by Step Solution

1. Step 1: Write the proportion equation
   22,306.84 : 30,786.18 = 12,875.41 : x
2. Step 2: Convert to fraction form
   22,306.84/30,786.18 = 12,875.41/x
3. Step 3: Cross multiply
   22,306.84x = 30,786.18 × 12,875.41
4. Step 4: Simplify right side
   22,306.84x = 396,384,689.83
5. Step 5: Solve for x
   x = 396,384,689.83/22,306.84
6. Step 6: Final answer
   x = 17,769.65