Finding the Fourth Proportional to 22,221, 30,664.58 and 13,270.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,221 : 30,664.58 = 13,270.50 : x
2. Step 2: Convert to fraction form
   22,221/30,664.58 = 13,270.50/x
3. Step 3: Cross multiply
   22,221x = 30,664.58 × 13,270.50
4. Step 4: Simplify right side
   22,221x = 406,934,242.54
5. Step 5: Solve for x
   x = 406,934,242.54/22,221
6. Step 6: Final answer
   x = 18,313.05