Finding the Fourth Proportional to 10,275.51, 15,413.72 and 3,256.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,275.51 : 15,413.72 = 3,256.05 : x
2. Step 2: Convert to fraction form
   10,275.51/15,413.72 = 3,256.05/x
3. Step 3: Cross multiply
   10,275.51x = 15,413.72 × 3,256.05
4. Step 4: Simplify right side
   10,275.51x = 50,187,776.40
5. Step 5: Solve for x
   x = 50,187,776.40/10,275.51
6. Step 6: Final answer
   x = 4,884.21