Finding the Fourth Proportional to 16,662.68, 22,994.43 and 9,109.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.68 : 22,994.43 = 9,109.02 : x
2. Step 2: Convert to fraction form
   16,662.68/22,994.43 = 9,109.02/x
3. Step 3: Cross multiply
   16,662.68x = 22,994.43 × 9,109.02
4. Step 4: Simplify right side
   16,662.68x = 209,456,826.07
5. Step 5: Solve for x
   x = 209,456,826.07/16,662.68
6. Step 6: Final answer
   x = 12,570.42