Finding the Fourth Proportional to 22,165.98, 30,589.83 and 12,732.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,165.98 : 30,589.83 = 12,732.78 : x
2. Step 2: Convert to fraction form
   22,165.98/30,589.83 = 12,732.78/x
3. Step 3: Cross multiply
   22,165.98x = 30,589.83 × 12,732.78
4. Step 4: Simplify right side
   22,165.98x = 389,493,575.63
5. Step 5: Solve for x
   x = 389,493,575.63/22,165.98
6. Step 6: Final answer
   x = 17,571.68