Finding the Fourth Proportional to 16,001.63, 22,080.72 and 8,928.51

Step by Step Solution

1. Step 1: Write the proportion equation
   16,001.63 : 22,080.72 = 8,928.51 : x
2. Step 2: Convert to fraction form
   16,001.63/22,080.72 = 8,928.51/x
3. Step 3: Cross multiply
   16,001.63x = 22,080.72 × 8,928.51
4. Step 4: Simplify right side
   16,001.63x = 197,147,929.33
5. Step 5: Solve for x
   x = 197,147,929.33/16,001.63
6. Step 6: Final answer
   x = 12,320.49