Finding the Fourth Proportional to 21,321.27, 31,984.82 and 7,277.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,321.27 : 31,984.82 = 7,277.52 : x
2. Step 2: Convert to fraction form
   21,321.27/31,984.82 = 7,277.52/x
3. Step 3: Cross multiply
   21,321.27x = 31,984.82 × 7,277.52
4. Step 4: Simplify right side
   21,321.27x = 232,770,167.25
5. Step 5: Solve for x
   x = 232,770,167.25/21,321.27
6. Step 6: Final answer
   x = 10,917.27