Finding the Fourth Proportional to 16,206.32, 22,364.72 and 9,132.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,206.32 : 22,364.72 = 9,132.99 : x
2. Step 2: Convert to fraction form
   16,206.32/22,364.72 = 9,132.99/x
3. Step 3: Cross multiply
   16,206.32x = 22,364.72 × 9,132.99
4. Step 4: Simplify right side
   16,206.32x = 204,256,718.45
5. Step 5: Solve for x
   x = 204,256,718.45/16,206.32
6. Step 6: Final answer
   x = 12,603.53