Finding the Fourth Proportional to 10,031.79, 15,038.46 and 3,456.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,031.79 : 15,038.46 = 3,456.42 : x
2. Step 2: Convert to fraction form
   10,031.79/15,038.46 = 3,456.42/x
3. Step 3: Cross multiply
   10,031.79x = 15,038.46 × 3,456.42
4. Step 4: Simplify right side
   10,031.79x = 51,979,233.91
5. Step 5: Solve for x
   x = 51,979,233.91/10,031.79
6. Step 6: Final answer
   x = 5,181.45