Finding the Fourth Proportional to 16,180.50, 22,326.66 and 9,106.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,180.50 : 22,326.66 = 9,106.78 : x
2. Step 2: Convert to fraction form
   16,180.50/22,326.66 = 9,106.78/x
3. Step 3: Cross multiply
   16,180.50x = 22,326.66 × 9,106.78
4. Step 4: Simplify right side
   16,180.50x = 203,323,980.75
5. Step 5: Solve for x
   x = 203,323,980.75/16,180.50
6. Step 6: Final answer
   x = 12,565.99