Finding the Fourth Proportional to 7,958.36, 10,980.72 and 4,814.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,958.36 : 10,980.72 = 4,814.48 : x
2. Step 2: Convert to fraction form
   7,958.36/10,980.72 = 4,814.48/x
3. Step 3: Cross multiply
   7,958.36x = 10,980.72 × 4,814.48
4. Step 4: Simplify right side
   7,958.36x = 52,866,456.83
5. Step 5: Solve for x
   x = 52,866,456.83/7,958.36
6. Step 6: Final answer
   x = 6,642.88