Finding the Fourth Proportional to 16,034.96, 22,128.34 and 9,320.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,034.96 : 22,128.34 = 9,320.72 : x
2. Step 2: Convert to fraction form
   16,034.96/22,128.34 = 9,320.72/x
3. Step 3: Cross multiply
   16,034.96x = 22,128.34 × 9,320.72
4. Step 4: Simplify right side
   16,034.96x = 206,252,069.21
5. Step 5: Solve for x
   x = 206,252,069.21/16,034.96
6. Step 6: Final answer
   x = 12,862.65