Finding the Fourth Proportional to 22,300.96, 30,770.96 and 13,224.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.96 : 30,770.96 = 13,224.64 : x
2. Step 2: Convert to fraction form
   22,300.96/30,770.96 = 13,224.64/x
3. Step 3: Cross multiply
   22,300.96x = 30,770.96 × 13,224.64
4. Step 4: Simplify right side
   22,300.96x = 406,934,868.45
5. Step 5: Solve for x
   x = 406,934,868.45/22,300.96
6. Step 6: Final answer
   x = 18,247.41