Finding the Fourth Proportional to 8,078.17, 11,144.71 and 5,958.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,078.17 : 11,144.71 = 5,958.80 : x
2. Step 2: Convert to fraction form
   8,078.17/11,144.71 = 5,958.80/x
3. Step 3: Cross multiply
   8,078.17x = 11,144.71 × 5,958.80
4. Step 4: Simplify right side
   8,078.17x = 66,409,012.43
5. Step 5: Solve for x
   x = 66,409,012.43/8,078.17
6. Step 6: Final answer
   x = 8,220.80