Finding the Fourth Proportional to 22,359.03, 30,855.96 and 12,288.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,359.03 : 30,855.96 = 12,288.09 : x
2. Step 2: Convert to fraction form
   22,359.03/30,855.96 = 12,288.09/x
3. Step 3: Cross multiply
   22,359.03x = 30,855.96 × 12,288.09
4. Step 4: Simplify right side
   22,359.03x = 379,160,813.52
5. Step 5: Solve for x
   x = 379,160,813.52/22,359.03
6. Step 6: Final answer
   x = 16,957.84