Finding the Fourth Proportional to 16,623.76, 22,940.66 and 9,069.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,623.76 : 22,940.66 = 9,069.98 : x
2. Step 2: Convert to fraction form
   16,623.76/22,940.66 = 9,069.98/x
3. Step 3: Cross multiply
   16,623.76x = 22,940.66 × 9,069.98
4. Step 4: Simplify right side
   16,623.76x = 208,071,327.39
5. Step 5: Solve for x
   x = 208,071,327.39/16,623.76
6. Step 6: Final answer
   x = 12,516.50