Finding the Fourth Proportional to 22,276.89, 30,742.10 and 12,205.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,276.89 : 30,742.10 = 12,205.49 : x
2. Step 2: Convert to fraction form
   22,276.89/30,742.10 = 12,205.49/x
3. Step 3: Cross multiply
   22,276.89x = 30,742.10 × 12,205.49
4. Step 4: Simplify right side
   22,276.89x = 375,222,225.16
5. Step 5: Solve for x
   x = 375,222,225.16/22,276.89
6. Step 6: Final answer
   x = 16,843.56