Finding the Fourth Proportional to 9,087.46, 12,540.84 and 5,108.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,087.46 : 12,540.84 = 5,108.56 : x
2. Step 2: Convert to fraction form
   9,087.46/12,540.84 = 5,108.56/x
3. Step 3: Cross multiply
   9,087.46x = 12,540.84 × 5,108.56
4. Step 4: Simplify right side
   9,087.46x = 64,065,633.59
5. Step 5: Solve for x
   x = 64,065,633.59/9,087.46
6. Step 6: Final answer
   x = 7,049.89