Finding the Fourth Proportional to 16,532.10, 22,814.35 and 8,978.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,532.10 : 22,814.35 = 8,978.56 : x
2. Step 2: Convert to fraction form
   16,532.10/22,814.35 = 8,978.56/x
3. Step 3: Cross multiply
   16,532.10x = 22,814.35 × 8,978.56
4. Step 4: Simplify right side
   16,532.10x = 204,839,930.85
5. Step 5: Solve for x
   x = 204,839,930.85/16,532.10
6. Step 6: Final answer
   x = 12,390.44