Finding the Fourth Proportional to 9,086.61, 12,541.74 and 5,550.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.61 : 12,541.74 = 5,550.96 : x
2. Step 2: Convert to fraction form
   9,086.61/12,541.74 = 5,550.96/x
3. Step 3: Cross multiply
   9,086.61x = 12,541.74 × 5,550.96
4. Step 4: Simplify right side
   9,086.61x = 69,618,697.07
5. Step 5: Solve for x
   x = 69,618,697.07/9,086.61
6. Step 6: Final answer
   x = 7,661.68