Finding the Fourth Proportional to 9,413.64, 12,992.67 and 5,434.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,413.64 : 12,992.67 = 5,434.52 : x
2. Step 2: Convert to fraction form
   9,413.64/12,992.67 = 5,434.52/x
3. Step 3: Cross multiply
   9,413.64x = 12,992.67 × 5,434.52
4. Step 4: Simplify right side
   9,413.64x = 70,608,860.01
5. Step 5: Solve for x
   x = 70,608,860.01/9,413.64
6. Step 6: Final answer
   x = 7,500.70