Finding the Fourth Proportional to 10,031, 15,047.30 and 3,105.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031 : 15,047.30 = 3,105.48 : x
2. Step 2: Convert to fraction form
   10,031/15,047.30 = 3,105.48/x
3. Step 3: Cross multiply
   10,031x = 15,047.30 × 3,105.48
4. Step 4: Simplify right side
   10,031x = 46,729,089.20
5. Step 5: Solve for x
   x = 46,729,089.20/10,031
6. Step 6: Final answer
   x = 4,658.47