Finding the Fourth Proportional to 5,047.98, 6,964.27 and 3,158.79

Step by Step Solution

1. Step 1: Write the proportion equation
   5,047.98 : 6,964.27 = 3,158.79 : x
2. Step 2: Convert to fraction form
   5,047.98/6,964.27 = 3,158.79/x
3. Step 3: Cross multiply
   5,047.98x = 6,964.27 × 3,158.79
4. Step 4: Simplify right side
   5,047.98x = 21,998,666.43
5. Step 5: Solve for x
   x = 21,998,666.43/5,047.98
6. Step 6: Final answer
   x = 4,357.91