Finding the Fourth Proportional to 22,406.72, 30,888.12 and 14,339.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,406.72 : 30,888.12 = 14,339.48 : x
2. Step 2: Convert to fraction form
   22,406.72/30,888.12 = 14,339.48/x
3. Step 3: Cross multiply
   22,406.72x = 30,888.12 × 14,339.48
4. Step 4: Simplify right side
   22,406.72x = 442,919,578.98
5. Step 5: Solve for x
   x = 442,919,578.98/22,406.72
6. Step 6: Final answer
   x = 19,767.27