Finding the Fourth Proportional to 21,940.39, 32,904.31 and 7,150.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,940.39 : 32,904.31 = 7,150.60 : x
2. Step 2: Convert to fraction form
   21,940.39/32,904.31 = 7,150.60/x
3. Step 3: Cross multiply
   21,940.39x = 32,904.31 × 7,150.60
4. Step 4: Simplify right side
   21,940.39x = 235,285,523.33
5. Step 5: Solve for x
   x = 235,285,523.33/21,940.39
6. Step 6: Final answer
   x = 10,723.85