Finding the Fourth Proportional to 6,941.72, 10,399.62 and 5,399.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,941.72 : 10,399.62 = 5,399.48 : x
2. Step 2: Convert to fraction form
   6,941.72/10,399.62 = 5,399.48/x
3. Step 3: Cross multiply
   6,941.72x = 10,399.62 × 5,399.48
4. Step 4: Simplify right side
   6,941.72x = 56,152,540.20
5. Step 5: Solve for x
   x = 56,152,540.20/6,941.72
6. Step 6: Final answer
   x = 8,089.14