Finding the Fourth Proportional to 22,222.09, 30,666.96 and 13,267.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,222.09 : 30,666.96 = 13,267.91 : x
2. Step 2: Convert to fraction form
   22,222.09/30,666.96 = 13,267.91/x
3. Step 3: Cross multiply
   22,222.09x = 30,666.96 × 13,267.91
4. Step 4: Simplify right side
   22,222.09x = 406,886,245.58
5. Step 5: Solve for x
   x = 406,886,245.58/22,222.09
6. Step 6: Final answer
   x = 18,309.99