Finding the Fourth Proportional to 9,086.50, 12,539.46 and 5,107.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.50 : 12,539.46 = 5,107.42 : x
2. Step 2: Convert to fraction form
   9,086.50/12,539.46 = 5,107.42/x
3. Step 3: Cross multiply
   9,086.50x = 12,539.46 × 5,107.42
4. Step 4: Simplify right side
   9,086.50x = 64,044,288.79
5. Step 5: Solve for x
   x = 64,044,288.79/9,086.50
6. Step 6: Final answer
   x = 7,048.29