Finding the Fourth Proportional to 22,358.66, 30,855.72 and 12,288.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,358.66 : 30,855.72 = 12,288.04 : x
2. Step 2: Convert to fraction form
   22,358.66/30,855.72 = 12,288.04/x
3. Step 3: Cross multiply
   22,358.66x = 30,855.72 × 12,288.04
4. Step 4: Simplify right side
   22,358.66x = 379,156,321.59
5. Step 5: Solve for x
   x = 379,156,321.59/22,358.66
6. Step 6: Final answer
   x = 16,957.92