Finding the Fourth Proportional to 22,164.16, 30,644.16 and 21,184.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,164.16 : 30,644.16 = 21,184.96 : x
2. Step 2: Convert to fraction form
   22,164.16/30,644.16 = 21,184.96/x
3. Step 3: Cross multiply
   22,164.16x = 30,644.16 × 21,184.96
4. Step 4: Simplify right side
   22,164.16x = 649,195,303.83
5. Step 5: Solve for x
   x = 649,195,303.83/22,164.16
6. Step 6: Final answer
   x = 29,290.32