Finding the Fourth Proportional to 22,105.68, 30,495.52 and 13,148.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,105.68 : 30,495.52 = 13,148.16 : x
2. Step 2: Convert to fraction form
   22,105.68/30,495.52 = 13,148.16/x
3. Step 3: Cross multiply
   22,105.68x = 30,495.52 × 13,148.16
4. Step 4: Simplify right side
   22,105.68x = 400,959,976.24
5. Step 5: Solve for x
   x = 400,959,976.24/22,105.68
6. Step 6: Final answer
   x = 18,138.32