Finding the Fourth Proportional to 10,144.10, 15,213.45 and 3,124.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,144.10 : 15,213.45 = 3,124.10 : x
2. Step 2: Convert to fraction form
   10,144.10/15,213.45 = 3,124.10/x
3. Step 3: Cross multiply
   10,144.10x = 15,213.45 × 3,124.10
4. Step 4: Simplify right side
   10,144.10x = 47,528,339.15
5. Step 5: Solve for x
   x = 47,528,339.15/10,144.10
6. Step 6: Final answer
   x = 4,685.32