Finding the Fourth Proportional to 9,238.80, 12,750.56 and 5,259.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238.80 : 12,750.56 = 5,259.27 : x
2. Step 2: Convert to fraction form
   9,238.80/12,750.56 = 5,259.27/x
3. Step 3: Cross multiply
   9,238.80x = 12,750.56 × 5,259.27
4. Step 4: Simplify right side
   9,238.80x = 67,058,637.69
5. Step 5: Solve for x
   x = 67,058,637.69/9,238.80
6. Step 6: Final answer
   x = 7,258.37