Finding the Fourth Proportional to 16,200.32, 22,356.12 and 9,126.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,200.32 : 22,356.12 = 9,126.60 : x
2. Step 2: Convert to fraction form
   16,200.32/22,356.12 = 9,126.60/x
3. Step 3: Cross multiply
   16,200.32x = 22,356.12 × 9,126.60
4. Step 4: Simplify right side
   16,200.32x = 204,035,364.79
5. Step 5: Solve for x
   x = 204,035,364.79/16,200.32
6. Step 6: Final answer
   x = 12,594.53