Finding the Fourth Proportional to 9,228.63, 12,735.63 and 5,250.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,228.63 : 12,735.63 = 5,250.72 : x
2. Step 2: Convert to fraction form
   9,228.63/12,735.63 = 5,250.72/x
3. Step 3: Cross multiply
   9,228.63x = 12,735.63 × 5,250.72
4. Step 4: Simplify right side
   9,228.63x = 66,871,227.15
5. Step 5: Solve for x
   x = 66,871,227.15/9,228.63
6. Step 6: Final answer
   x = 7,246.06