Finding the Fourth Proportional to 9,127.82, 12,589.92 and 8,822.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.82 : 12,589.92 = 8,822.99 : x
2. Step 2: Convert to fraction form
   9,127.82/12,589.92 = 8,822.99/x
3. Step 3: Cross multiply
   9,127.82x = 12,589.92 × 8,822.99
4. Step 4: Simplify right side
   9,127.82x = 111,080,675.31
5. Step 5: Solve for x
   x = 111,080,675.31/9,127.82
6. Step 6: Final answer
   x = 12,169.47