Finding the Fourth Proportional to 10,708.91, 14,778.06 and 5,928.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,708.91 : 14,778.06 = 5,928.57 : x
2. Step 2: Convert to fraction form
   10,708.91/14,778.06 = 5,928.57/x
3. Step 3: Cross multiply
   10,708.91x = 14,778.06 × 5,928.57
4. Step 4: Simplify right side
   10,708.91x = 87,612,740.94
5. Step 5: Solve for x
   x = 87,612,740.94/10,708.91
6. Step 6: Final answer
   x = 8,181.29