Finding the Fourth Proportional to 5,533.98, 7,628.76 and 3,959.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,533.98 : 7,628.76 = 3,959.34 : x
2. Step 2: Convert to fraction form
   5,533.98/7,628.76 = 3,959.34/x
3. Step 3: Cross multiply
   5,533.98x = 7,628.76 × 3,959.34
4. Step 4: Simplify right side
   5,533.98x = 30,204,854.62
5. Step 5: Solve for x
   x = 30,204,854.62/5,533.98
6. Step 6: Final answer
   x = 5,458.07