Finding the Fourth Proportional to 16,653.69, 22,981.37 and 9,099.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,653.69 : 22,981.37 = 9,099.90 : x
2. Step 2: Convert to fraction form
   16,653.69/22,981.37 = 9,099.90/x
3. Step 3: Cross multiply
   16,653.69x = 22,981.37 × 9,099.90
4. Step 4: Simplify right side
   16,653.69x = 209,128,168.86
5. Step 5: Solve for x
   x = 209,128,168.86/16,653.69
6. Step 6: Final answer
   x = 12,557.47