Finding the Fourth Proportional to 8,868.49, 12,238.28 and 4,889.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.49 : 12,238.28 = 4,889.53 : x
2. Step 2: Convert to fraction form
   8,868.49/12,238.28 = 4,889.53/x
3. Step 3: Cross multiply
   8,868.49x = 12,238.28 × 4,889.53
4. Step 4: Simplify right side
   8,868.49x = 59,839,412.76
5. Step 5: Solve for x
   x = 59,839,412.76/8,868.49
6. Step 6: Final answer
   x = 6,747.42