Finding the Fourth Proportional to 22,147.28, 30,695.18 and 21,732.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,147.28 : 30,695.18 = 21,732.56 : x
2. Step 2: Convert to fraction form
   22,147.28/30,695.18 = 21,732.56/x
3. Step 3: Cross multiply
   22,147.28x = 30,695.18 × 21,732.56
4. Step 4: Simplify right side
   22,147.28x = 667,084,841.06
5. Step 5: Solve for x
   x = 667,084,841.06/22,147.28
6. Step 6: Final answer
   x = 30,120.40