Finding the Fourth Proportional to 7,288.56, 10,058.28 and 3,976.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,288.56 : 10,058.28 = 3,976.56 : x
2. Step 2: Convert to fraction form
   7,288.56/10,058.28 = 3,976.56/x
3. Step 3: Cross multiply
   7,288.56x = 10,058.28 × 3,976.56
4. Step 4: Simplify right side
   7,288.56x = 39,997,353.92
5. Step 5: Solve for x
   x = 39,997,353.92/7,288.56
6. Step 6: Final answer
   x = 5,487.69