Finding the Fourth Proportional to 16,062.84, 22,166.56 and 8,989.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,062.84 : 22,166.56 = 8,989.31 : x
2. Step 2: Convert to fraction form
   16,062.84/22,166.56 = 8,989.31/x
3. Step 3: Cross multiply
   16,062.84x = 22,166.56 × 8,989.31
4. Step 4: Simplify right side
   16,062.84x = 199,262,146.13
5. Step 5: Solve for x
   x = 199,262,146.13/16,062.84
6. Step 6: Final answer
   x = 12,405.16