Finding the Fourth Proportional to 22,318.70, 30,800.72 and 13,364.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,318.70 : 30,800.72 = 13,364.42 : x
2. Step 2: Convert to fraction form
   22,318.70/30,800.72 = 13,364.42/x
3. Step 3: Cross multiply
   22,318.70x = 30,800.72 × 13,364.42
4. Step 4: Simplify right side
   22,318.70x = 411,633,691.56
5. Step 5: Solve for x
   x = 411,633,691.56/22,318.70
6. Step 6: Final answer
   x = 18,443.44