Finding the Fourth Proportional to 21,096.15, 31,651.51 and 7,952.28

Step by Step Solution

1. Step 1: Write the proportion equation
   21,096.15 : 31,651.51 = 7,952.28 : x
2. Step 2: Convert to fraction form
   21,096.15/31,651.51 = 7,952.28/x
3. Step 3: Cross multiply
   21,096.15x = 31,651.51 × 7,952.28
4. Step 4: Simplify right side
   21,096.15x = 251,701,546.28
5. Step 5: Solve for x
   x = 251,701,546.28/21,096.15
6. Step 6: Final answer
   x = 11,931.16