Finding the Fourth Proportional to 6,215.48, 8,573.72 and 3,976.53

Step by Step Solution

1. Step 1: Write the proportion equation
   6,215.48 : 8,573.72 = 3,976.53 : x
2. Step 2: Convert to fraction form
   6,215.48/8,573.72 = 3,976.53/x
3. Step 3: Cross multiply
   6,215.48x = 8,573.72 × 3,976.53
4. Step 4: Simplify right side
   6,215.48x = 34,093,634.91
5. Step 5: Solve for x
   x = 34,093,634.91/6,215.48
6. Step 6: Final answer
   x = 5,485.28