Finding the Fourth Proportional to 16,830.23, 23,225.61 and 9,173.49

Step by Step Solution

1. Step 1: Write the proportion equation
   16,830.23 : 23,225.61 = 9,173.49 : x
2. Step 2: Convert to fraction form
   16,830.23/23,225.61 = 9,173.49/x
3. Step 3: Cross multiply
   16,830.23x = 23,225.61 × 9,173.49
4. Step 4: Simplify right side
   16,830.23x = 213,059,901.08
5. Step 5: Solve for x
   x = 213,059,901.08/16,830.23
6. Step 6: Final answer
   x = 12,659.36