Finding the Fourth Proportional to 7,231.80, 10,849.86 and 5,127.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,231.80 : 10,849.86 = 5,127.48 : x
2. Step 2: Convert to fraction form
   7,231.80/10,849.86 = 5,127.48/x
3. Step 3: Cross multiply
   7,231.80x = 10,849.86 × 5,127.48
4. Step 4: Simplify right side
   7,231.80x = 55,632,440.15
5. Step 5: Solve for x
   x = 55,632,440.15/7,231.80
6. Step 6: Final answer
   x = 7,692.75