Finding the Fourth Proportional to 10,686.48, 14,747.33 and 5,906.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.48 : 14,747.33 = 5,906.79 : x
2. Step 2: Convert to fraction form
   10,686.48/14,747.33 = 5,906.79/x
3. Step 3: Cross multiply
   10,686.48x = 14,747.33 × 5,906.79
4. Step 4: Simplify right side
   10,686.48x = 87,109,351.84
5. Step 5: Solve for x
   x = 87,109,351.84/10,686.48
6. Step 6: Final answer
   x = 8,151.36