Finding the Fourth Proportional to 22,359.53, 30,856.14 and 12,287.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,359.53 : 30,856.14 = 12,287.96 : x
2. Step 2: Convert to fraction form
   22,359.53/30,856.14 = 12,287.96/x
3. Step 3: Cross multiply
   22,359.53x = 30,856.14 × 12,287.96
4. Step 4: Simplify right side
   22,359.53x = 379,158,859.79
5. Step 5: Solve for x
   x = 379,158,859.79/22,359.53
6. Step 6: Final answer
   x = 16,957.38