Finding the Fourth Proportional to 8,200.88, 12,307.68 and 5,719.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,200.88 : 12,307.68 = 5,719.56 : x
2. Step 2: Convert to fraction form
   8,200.88/12,307.68 = 5,719.56/x
3. Step 3: Cross multiply
   8,200.88x = 12,307.68 × 5,719.56
4. Step 4: Simplify right side
   8,200.88x = 70,394,514.22
5. Step 5: Solve for x
   x = 70,394,514.22/8,200.88
6. Step 6: Final answer
   x = 8,583.78