Finding the Fourth Proportional to 5,215.69, 7,196.48 and 2,976.85

Step by Step Solution

1. Step 1: Write the proportion equation
   5,215.69 : 7,196.48 = 2,976.85 : x
2. Step 2: Convert to fraction form
   5,215.69/7,196.48 = 2,976.85/x
3. Step 3: Cross multiply
   5,215.69x = 7,196.48 × 2,976.85
4. Step 4: Simplify right side
   5,215.69x = 21,422,816.05
5. Step 5: Solve for x
   x = 21,422,816.05/5,215.69
6. Step 6: Final answer
   x = 4,107.38