Finding the Fourth Proportional to 7,949.79, 10,975.77 and 5,436.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,949.79 : 10,975.77 = 5,436.09 : x
2. Step 2: Convert to fraction form
   7,949.79/10,975.77 = 5,436.09/x
3. Step 3: Cross multiply
   7,949.79x = 10,975.77 × 5,436.09
4. Step 4: Simplify right side
   7,949.79x = 59,665,273.54
5. Step 5: Solve for x
   x = 59,665,273.54/7,949.79
6. Step 6: Final answer
   x = 7,505.26