Finding the Fourth Proportional to 16,527.82, 22,789.12 and 12,328.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,527.82 : 22,789.12 = 12,328.78 : x
2. Step 2: Convert to fraction form
   16,527.82/22,789.12 = 12,328.78/x
3. Step 3: Cross multiply
   16,527.82x = 22,789.12 × 12,328.78
4. Step 4: Simplify right side
   16,527.82x = 280,962,046.87
5. Step 5: Solve for x
   x = 280,962,046.87/16,527.82
6. Step 6: Final answer
   x = 16,999.34