Finding the Fourth Proportional to 22,148.28, 30,696.57 and 21,733.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,148.28 : 30,696.57 = 21,733.56 : x
2. Step 2: Convert to fraction form
   22,148.28/30,696.57 = 21,733.56/x
3. Step 3: Cross multiply
   22,148.28x = 30,696.57 × 21,733.56
4. Step 4: Simplify right side
   22,148.28x = 667,145,745.89
5. Step 5: Solve for x
   x = 667,145,745.89/22,148.28
6. Step 6: Final answer
   x = 30,121.79