Finding the Fourth Proportional to 6,959.37, 9,604.32 and 4,128.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,959.37 : 9,604.32 = 4,128.42 : x
2. Step 2: Convert to fraction form
   6,959.37/9,604.32 = 4,128.42/x
3. Step 3: Cross multiply
   6,959.37x = 9,604.32 × 4,128.42
4. Step 4: Simplify right side
   6,959.37x = 39,650,642.76
5. Step 5: Solve for x
   x = 39,650,642.76/6,959.37
6. Step 6: Final answer
   x = 5,697.45