Finding the Fourth Proportional to 16,662.61, 22,994.45 and 9,109.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.61 : 22,994.45 = 9,109.09 : x
2. Step 2: Convert to fraction form
   16,662.61/22,994.45 = 9,109.09/x
3. Step 3: Cross multiply
   16,662.61x = 22,994.45 × 9,109.09
4. Step 4: Simplify right side
   16,662.61x = 209,458,514.55
5. Step 5: Solve for x
   x = 209,458,514.55/16,662.61
6. Step 6: Final answer
   x = 12,570.57