Finding the Fourth Proportional to 10,300.50, 15,449.97 and 3,280.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.50 : 15,449.97 = 3,280.23 : x
2. Step 2: Convert to fraction form
   10,300.50/15,449.97 = 3,280.23/x
3. Step 3: Cross multiply
   10,300.50x = 15,449.97 × 3,280.23
4. Step 4: Simplify right side
   10,300.50x = 50,679,467.39
5. Step 5: Solve for x
   x = 50,679,467.39/10,300.50
6. Step 6: Final answer
   x = 4,920.10