Finding the Fourth Proportional to 8,903.52, 12,282.72 and 5,760.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,903.52 : 12,282.72 = 5,760.72 : x
2. Step 2: Convert to fraction form
   8,903.52/12,282.72 = 5,760.72/x
3. Step 3: Cross multiply
   8,903.52x = 12,282.72 × 5,760.72
4. Step 4: Simplify right side
   8,903.52x = 70,757,310.76
5. Step 5: Solve for x
   x = 70,757,310.76/8,903.52
6. Step 6: Final answer
   x = 7,947.12