Finding the Fourth Proportional to 10,306.32, 15,451.56 and 5,108.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,306.32 : 15,451.56 = 5,108.16 : x
2. Step 2: Convert to fraction form
   10,306.32/15,451.56 = 5,108.16/x
3. Step 3: Cross multiply
   10,306.32x = 15,451.56 × 5,108.16
4. Step 4: Simplify right side
   10,306.32x = 78,929,040.73
5. Step 5: Solve for x
   x = 78,929,040.73/10,306.32
6. Step 6: Final answer
   x = 7,658.31