Finding the Fourth Proportional to 6,215.60, 8,573.89 and 3,976.65

Step by Step Solution

1. Step 1: Write the proportion equation
   6,215.60 : 8,573.89 = 3,976.65 : x
2. Step 2: Convert to fraction form
   6,215.60/8,573.89 = 3,976.65/x
3. Step 3: Cross multiply
   6,215.60x = 8,573.89 × 3,976.65
4. Step 4: Simplify right side
   6,215.60x = 34,095,359.67
5. Step 5: Solve for x
   x = 34,095,359.67/6,215.60
6. Step 6: Final answer
   x = 5,485.45