Finding the Fourth Proportional to 9,392.88, 12,959.24 and 5,413.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,392.88 : 12,959.24 = 5,413.45 : x
2. Step 2: Convert to fraction form
   9,392.88/12,959.24 = 5,413.45/x
3. Step 3: Cross multiply
   9,392.88x = 12,959.24 × 5,413.45
4. Step 4: Simplify right side
   9,392.88x = 70,154,138.31
5. Step 5: Solve for x
   x = 70,154,138.31/9,392.88
6. Step 6: Final answer
   x = 7,468.86