Finding the Fourth Proportional to 4,709.56, 7,059.48 and 3,069.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,709.56 : 7,059.48 = 3,069.31 : x
2. Step 2: Convert to fraction form
   4,709.56/7,059.48 = 3,069.31/x
3. Step 3: Cross multiply
   4,709.56x = 7,059.48 × 3,069.31
4. Step 4: Simplify right side
   4,709.56x = 21,667,732.56
5. Step 5: Solve for x
   x = 21,667,732.56/4,709.56
6. Step 6: Final answer
   x = 4,600.80