Finding the Fourth Proportional to 9,086.85, 12,536.53 and 5,728.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.85 : 12,536.53 = 5,728.41 : x
2. Step 2: Convert to fraction form
   9,086.85/12,536.53 = 5,728.41/x
3. Step 3: Cross multiply
   9,086.85x = 12,536.53 × 5,728.41
4. Step 4: Simplify right side
   9,086.85x = 71,814,383.82
5. Step 5: Solve for x
   x = 71,814,383.82/9,086.85
6. Step 6: Final answer
   x = 7,903.11