Finding the Fourth Proportional to 22,016.80, 30,387.82 and 14,057.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,016.80 : 30,387.82 = 14,057.64 : x
2. Step 2: Convert to fraction form
   22,016.80/30,387.82 = 14,057.64/x
3. Step 3: Cross multiply
   22,016.80x = 30,387.82 × 14,057.64
4. Step 4: Simplify right side
   22,016.80x = 427,181,033.94
5. Step 5: Solve for x
   x = 427,181,033.94/22,016.80
6. Step 6: Final answer
   x = 19,402.50