Finding the Fourth Proportional to 16,602.06, 22,910.79 and 9,150.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,602.06 : 22,910.79 = 9,150.06 : x
2. Step 2: Convert to fraction form
   16,602.06/22,910.79 = 9,150.06/x
3. Step 3: Cross multiply
   16,602.06x = 22,910.79 × 9,150.06
4. Step 4: Simplify right side
   16,602.06x = 209,635,103.15
5. Step 5: Solve for x
   x = 209,635,103.15/16,602.06
6. Step 6: Final answer
   x = 12,627.05