Finding the Fourth Proportional to 16,000.45, 22,081.86 and 8,831.77

Step by Step Solution

1. Step 1: Write the proportion equation
   16,000.45 : 22,081.86 = 8,831.77 : x
2. Step 2: Convert to fraction form
   16,000.45/22,081.86 = 8,831.77/x
3. Step 3: Cross multiply
   16,000.45x = 22,081.86 × 8,831.77
4. Step 4: Simplify right side
   16,000.45x = 195,021,908.69
5. Step 5: Solve for x
   x = 195,021,908.69/16,000.45
6. Step 6: Final answer
   x = 12,188.53