Finding the Fourth Proportional to 9,215.72, 12,717.62 and 5,023.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,215.72 : 12,717.62 = 5,023.88 : x
2. Step 2: Convert to fraction form
   9,215.72/12,717.62 = 5,023.88/x
3. Step 3: Cross multiply
   9,215.72x = 12,717.62 × 5,023.88
4. Step 4: Simplify right side
   9,215.72x = 63,891,796.77
5. Step 5: Solve for x
   x = 63,891,796.77/9,215.72
6. Step 6: Final answer
   x = 6,932.91