Finding the Fourth Proportional to 22,238.46, 30,674.52 and 13,278.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,238.46 : 30,674.52 = 13,278.96 : x
2. Step 2: Convert to fraction form
   22,238.46/30,674.52 = 13,278.96/x
3. Step 3: Cross multiply
   22,238.46x = 30,674.52 × 13,278.96
4. Step 4: Simplify right side
   22,238.46x = 407,325,724.10
5. Step 5: Solve for x
   x = 407,325,724.10/22,238.46
6. Step 6: Final answer
   x = 18,316.27