Finding the Fourth Proportional to 6,976.17, 9,623.61 and 4,142.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,976.17 : 9,623.61 = 4,142.31 : x
2. Step 2: Convert to fraction form
   6,976.17/9,623.61 = 4,142.31/x
3. Step 3: Cross multiply
   6,976.17x = 9,623.61 × 4,142.31
4. Step 4: Simplify right side
   6,976.17x = 39,863,975.94
5. Step 5: Solve for x
   x = 39,863,975.94/6,976.17
6. Step 6: Final answer
   x = 5,714.31