Finding the Fourth Proportional to 22,100.70, 30,496.02 and 13,144.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,100.70 : 30,496.02 = 13,144.92 : x
2. Step 2: Convert to fraction form
   22,100.70/30,496.02 = 13,144.92/x
3. Step 3: Cross multiply
   22,100.70x = 30,496.02 × 13,144.92
4. Step 4: Simplify right side
   22,100.70x = 400,867,743.22
5. Step 5: Solve for x
   x = 400,867,743.22/22,100.70
6. Step 6: Final answer
   x = 18,138.24