Finding the Fourth Proportional to 8,912.82, 12,288.05 and 5,549.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,912.82 : 12,288.05 = 5,549.81 : x
2. Step 2: Convert to fraction form
   8,912.82/12,288.05 = 5,549.81/x
3. Step 3: Cross multiply
   8,912.82x = 12,288.05 × 5,549.81
4. Step 4: Simplify right side
   8,912.82x = 68,196,253.58
5. Step 5: Solve for x
   x = 68,196,253.58/8,912.82
6. Step 6: Final answer
   x = 7,651.48