Finding the Fourth Proportional to 9,215.31, 12,717.17 and 5,023.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,215.31 : 12,717.17 = 5,023.56 : x
2. Step 2: Convert to fraction form
   9,215.31/12,717.17 = 5,023.56/x
3. Step 3: Cross multiply
   9,215.31x = 12,717.17 × 5,023.56
4. Step 4: Simplify right side
   9,215.31x = 63,885,466.53
5. Step 5: Solve for x
   x = 63,885,466.53/9,215.31
6. Step 6: Final answer
   x = 6,932.54