Finding the Fourth Proportional to 16,109.86, 22,232.74 and 8,940.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,109.86 : 22,232.74 = 8,940.15 : x
2. Step 2: Convert to fraction form
   16,109.86/22,232.74 = 8,940.15/x
3. Step 3: Cross multiply
   16,109.86x = 22,232.74 × 8,940.15
4. Step 4: Simplify right side
   16,109.86x = 198,764,030.51
5. Step 5: Solve for x
   x = 198,764,030.51/16,109.86
6. Step 6: Final answer
   x = 12,338.04