Finding the Fourth Proportional to 10,300.97, 15,446.34 and 3,280.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.97 : 15,446.34 = 3,280.07 : x
2. Step 2: Convert to fraction form
   10,300.97/15,446.34 = 3,280.07/x
3. Step 3: Cross multiply
   10,300.97x = 15,446.34 × 3,280.07
4. Step 4: Simplify right side
   10,300.97x = 50,665,057.14
5. Step 5: Solve for x
   x = 50,665,057.14/10,300.97
6. Step 6: Final answer
   x = 4,918.47