Finding the Fourth Proportional to 9,236.50, 12,747.38 and 5,258.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,236.50 : 12,747.38 = 5,258.59 : x
2. Step 2: Convert to fraction form
   9,236.50/12,747.38 = 5,258.59/x
3. Step 3: Cross multiply
   9,236.50x = 12,747.38 × 5,258.59
4. Step 4: Simplify right side
   9,236.50x = 67,033,186.83
5. Step 5: Solve for x
   x = 67,033,186.83/9,236.50
6. Step 6: Final answer
   x = 7,257.42