Finding the Fourth Proportional to 6,942.02, 9,579.41 and 3,957.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,942.02 : 9,579.41 = 3,957.29 : x
2. Step 2: Convert to fraction form
   6,942.02/9,579.41 = 3,957.29/x
3. Step 3: Cross multiply
   6,942.02x = 9,579.41 × 3,957.29
4. Step 4: Simplify right side
   6,942.02x = 37,908,435.72
5. Step 5: Solve for x
   x = 37,908,435.72/6,942.02
6. Step 6: Final answer
   x = 5,460.73