Finding the Fourth Proportional to 22,091.67, 30,493.06 and 13,144.61

Step by Step Solution

1. Step 1: Write the proportion equation
   22,091.67 : 30,493.06 = 13,144.61 : x
2. Step 2: Convert to fraction form
   22,091.67/30,493.06 = 13,144.61/x
3. Step 3: Cross multiply
   22,091.67x = 30,493.06 × 13,144.61
4. Step 4: Simplify right side
   22,091.67x = 400,819,424.78
5. Step 5: Solve for x
   x = 400,819,424.78/22,091.67
6. Step 6: Final answer
   x = 18,143.46