Finding the Fourth Proportional to 9,500.78, 13,107.88 and 6,147.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,500.78 : 13,107.88 = 6,147.83 : x
2. Step 2: Convert to fraction form
   9,500.78/13,107.88 = 6,147.83/x
3. Step 3: Cross multiply
   9,500.78x = 13,107.88 × 6,147.83
4. Step 4: Simplify right side
   9,500.78x = 80,585,023.77
5. Step 5: Solve for x
   x = 80,585,023.77/9,500.78
6. Step 6: Final answer
   x = 8,481.94