Finding the Fourth Proportional to 16,018.32, 22,106.52 and 9,306.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,018.32 : 22,106.52 = 9,306.12 : x
2. Step 2: Convert to fraction form
   16,018.32/22,106.52 = 9,306.12/x
3. Step 3: Cross multiply
   16,018.32x = 22,106.52 × 9,306.12
4. Step 4: Simplify right side
   16,018.32x = 205,725,927.90
5. Step 5: Solve for x
   x = 205,725,927.90/16,018.32
6. Step 6: Final answer
   x = 12,843.17