Finding the Fourth Proportional to 16,179.21, 22,327.76 and 9,105.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,179.21 : 22,327.76 = 9,105.89 : x
2. Step 2: Convert to fraction form
   16,179.21/22,327.76 = 9,105.89/x
3. Step 3: Cross multiply
   16,179.21x = 22,327.76 × 9,105.89
4. Step 4: Simplify right side
   16,179.21x = 203,314,126.51
5. Step 5: Solve for x
   x = 203,314,126.51/16,179.21
6. Step 6: Final answer
   x = 12,566.38