Finding the Fourth Proportional to 22,221.37, 30,665.42 and 13,274.11

Step by Step Solution

1. Step 1: Write the proportion equation
   22,221.37 : 30,665.42 = 13,274.11 : x
2. Step 2: Convert to fraction form
   22,221.37/30,665.42 = 13,274.11/x
3. Step 3: Cross multiply
   22,221.37x = 30,665.42 × 13,274.11
4. Step 4: Simplify right side
   22,221.37x = 407,056,180.02
5. Step 5: Solve for x
   x = 407,056,180.02/22,221.37
6. Step 6: Final answer
   x = 18,318.23