Finding the Fourth Proportional to 16,308.01, 22,505.61 and 9,138.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,308.01 : 22,505.61 = 9,138.23 : x
2. Step 2: Convert to fraction form
   16,308.01/22,505.61 = 9,138.23/x
3. Step 3: Cross multiply
   16,308.01x = 22,505.61 × 9,138.23
4. Step 4: Simplify right side
   16,308.01x = 205,661,440.47
5. Step 5: Solve for x
   x = 205,661,440.47/16,308.01
6. Step 6: Final answer
   x = 12,611.07