Finding the Fourth Proportional to 9,910.28, 14,868.12 and 5,530.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.28 : 14,868.12 = 5,530.88 : x
2. Step 2: Convert to fraction form
   9,910.28/14,868.12 = 5,530.88/x
3. Step 3: Cross multiply
   9,910.28x = 14,868.12 × 5,530.88
4. Step 4: Simplify right side
   9,910.28x = 82,233,787.55
5. Step 5: Solve for x
   x = 82,233,787.55/9,910.28
6. Step 6: Final answer
   x = 8,297.83