Finding the Fourth Proportional to 10,403.49, 15,610.91 and 3,828.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,403.49 : 15,610.91 = 3,828.72 : x
2. Step 2: Convert to fraction form
   10,403.49/15,610.91 = 3,828.72/x
3. Step 3: Cross multiply
   10,403.49x = 15,610.91 × 3,828.72
4. Step 4: Simplify right side
   10,403.49x = 59,769,864.27
5. Step 5: Solve for x
   x = 59,769,864.27/10,403.49
6. Step 6: Final answer
   x = 5,745.17