Finding the Fourth Proportional to 10,956.57, 15,132.32 and 7,413.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,956.57 : 15,132.32 = 7,413.63 : x
2. Step 2: Convert to fraction form
   10,956.57/15,132.32 = 7,413.63/x
3. Step 3: Cross multiply
   10,956.57x = 15,132.32 × 7,413.63
4. Step 4: Simplify right side
   10,956.57x = 112,185,355.51
5. Step 5: Solve for x
   x = 112,185,355.51/10,956.57
6. Step 6: Final answer
   x = 10,239.10