Finding the Fourth Proportional to 22,168.22, 30,596.10 and 13,216.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,168.22 : 30,596.10 = 13,216.32 : x
2. Step 2: Convert to fraction form
   22,168.22/30,596.10 = 13,216.32/x
3. Step 3: Cross multiply
   22,168.22x = 30,596.10 × 13,216.32
4. Step 4: Simplify right side
   22,168.22x = 404,367,848.35
5. Step 5: Solve for x
   x = 404,367,848.35/22,168.22
6. Step 6: Final answer
   x = 18,240.88