Finding the Fourth Proportional to 10,103.37, 15,127.11 and 5,162.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.37 : 15,127.11 = 5,162.37 : x
2. Step 2: Convert to fraction form
   10,103.37/15,127.11 = 5,162.37/x
3. Step 3: Cross multiply
   10,103.37x = 15,127.11 × 5,162.37
4. Step 4: Simplify right side
   10,103.37x = 78,091,738.85
5. Step 5: Solve for x
   x = 78,091,738.85/10,103.37
6. Step 6: Final answer
   x = 7,729.28