Finding the Fourth Proportional to 9,086.95, 12,540.11 and 5,107.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.95 : 12,540.11 = 5,107.83 : x
2. Step 2: Convert to fraction form
   9,086.95/12,540.11 = 5,107.83/x
3. Step 3: Cross multiply
   9,086.95x = 12,540.11 × 5,107.83
4. Step 4: Simplify right side
   9,086.95x = 64,052,750.06
5. Step 5: Solve for x
   x = 64,052,750.06/9,086.95
6. Step 6: Final answer
   x = 7,048.87