Finding the Fourth Proportional to 22,291.88, 30,757.38 and 12,355.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,291.88 : 30,757.38 = 12,355.88 : x
2. Step 2: Convert to fraction form
   22,291.88/30,757.38 = 12,355.88/x
3. Step 3: Cross multiply
   22,291.88x = 30,757.38 × 12,355.88
4. Step 4: Simplify right side
   22,291.88x = 380,034,496.39
5. Step 5: Solve for x
   x = 380,034,496.39/22,291.88
6. Step 6: Final answer
   x = 17,048.11