Finding the Fourth Proportional to 16,065.34, 22,170.01 and 8,991.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,065.34 : 22,170.01 = 8,991.82 : x
2. Step 2: Convert to fraction form
   16,065.34/22,170.01 = 8,991.82/x
3. Step 3: Cross multiply
   16,065.34x = 22,170.01 × 8,991.82
4. Step 4: Simplify right side
   16,065.34x = 199,348,739.32
5. Step 5: Solve for x
   x = 199,348,739.32/16,065.34
6. Step 6: Final answer
   x = 12,408.62