Finding the Fourth Proportional to 22,265.91, 33,399.89 and 12,397.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,265.91 : 33,399.89 = 12,397.76 : x
2. Step 2: Convert to fraction form
   22,265.91/33,399.89 = 12,397.76/x
3. Step 3: Cross multiply
   22,265.91x = 33,399.89 × 12,397.76
4. Step 4: Simplify right side
   22,265.91x = 414,083,820.25
5. Step 5: Solve for x
   x = 414,083,820.25/22,265.91
6. Step 6: Final answer
   x = 18,597.21