Finding the Fourth Proportional to 21,957.27, 32,940.15 and 7,162.21

Step by Step Solution

1. Step 1: Write the proportion equation
   21,957.27 : 32,940.15 = 7,162.21 : x
2. Step 2: Convert to fraction form
   21,957.27/32,940.15 = 7,162.21/x
3. Step 3: Cross multiply
   21,957.27x = 32,940.15 × 7,162.21
4. Step 4: Simplify right side
   21,957.27x = 235,924,271.73
5. Step 5: Solve for x
   x = 235,924,271.73/21,957.27
6. Step 6: Final answer
   x = 10,744.70