Finding the Fourth Proportional to 22,359.69, 30,857.19 and 12,801.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,359.69 : 30,857.19 = 12,801.06 : x
2. Step 2: Convert to fraction form
   22,359.69/30,857.19 = 12,801.06/x
3. Step 3: Cross multiply
   22,359.69x = 30,857.19 × 12,801.06
4. Step 4: Simplify right side
   22,359.69x = 395,004,740.62
5. Step 5: Solve for x
   x = 395,004,740.62/22,359.69
6. Step 6: Final answer
   x = 17,665.93