Finding the Fourth Proportional to 16,080.52, 22,191.28 and 8,910.64

Step by Step Solution

1. Step 1: Write the proportion equation
   16,080.52 : 22,191.28 = 8,910.64 : x
2. Step 2: Convert to fraction form
   16,080.52/22,191.28 = 8,910.64/x
3. Step 3: Cross multiply
   16,080.52x = 22,191.28 × 8,910.64
4. Step 4: Simplify right side
   16,080.52x = 197,738,507.22
5. Step 5: Solve for x
   x = 197,738,507.22/16,080.52
6. Step 6: Final answer
   x = 12,296.77