Finding the Fourth Proportional to 10,275.76, 15,413.16 and 7,146.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,275.76 : 15,413.16 = 7,146.52 : x
2. Step 2: Convert to fraction form
   10,275.76/15,413.16 = 7,146.52/x
3. Step 3: Cross multiply
   10,275.76x = 15,413.16 × 7,146.52
4. Step 4: Simplify right side
   10,275.76x = 110,150,456.20
5. Step 5: Solve for x
   x = 110,150,456.20/10,275.76
6. Step 6: Final answer
   x = 10,719.45