Finding the Fourth Proportional to 10,658.06, 14,708.30 and 5,878.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,658.06 : 14,708.30 = 5,878.55 : x
2. Step 2: Convert to fraction form
   10,658.06/14,708.30 = 5,878.55/x
3. Step 3: Cross multiply
   10,658.06x = 14,708.30 × 5,878.55
4. Step 4: Simplify right side
   10,658.06x = 86,463,403.42
5. Step 5: Solve for x
   x = 86,463,403.42/10,658.06
6. Step 6: Final answer
   x = 8,112.49