Finding the Fourth Proportional to 16,662.95, 22,994.86 and 9,109.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.95 : 22,994.86 = 9,109.31 : x
2. Step 2: Convert to fraction form
   16,662.95/22,994.86 = 9,109.31/x
3. Step 3: Cross multiply
   16,662.95x = 22,994.86 × 9,109.31
4. Step 4: Simplify right side
   16,662.95x = 209,467,308.15
5. Step 5: Solve for x
   x = 209,467,308.15/16,662.95
6. Step 6: Final answer
   x = 12,570.84