Finding the Fourth Proportional to 16,086.64, 22,200.79 and 9,281.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,086.64 : 22,200.79 = 9,281.88 : x
2. Step 2: Convert to fraction form
   16,086.64/22,200.79 = 9,281.88/x
3. Step 3: Cross multiply
   16,086.64x = 22,200.79 × 9,281.88
4. Step 4: Simplify right side
   16,086.64x = 206,065,068.69
5. Step 5: Solve for x
   x = 206,065,068.69/16,086.64
6. Step 6: Final answer
   x = 12,809.70