Finding the Fourth Proportional to 16,402.34, 22,634.43 and 9,328.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.34 : 22,634.43 = 9,328.61 : x
2. Step 2: Convert to fraction form
   16,402.34/22,634.43 = 9,328.61/x
3. Step 3: Cross multiply
   16,402.34x = 22,634.43 × 9,328.61
4. Step 4: Simplify right side
   16,402.34x = 211,147,770.04
5. Step 5: Solve for x
   x = 211,147,770.04/16,402.34
6. Step 6: Final answer
   x = 12,873.03