Finding the Fourth Proportional to 8,717,413.89, 12,025,021.69 and 5,448,555.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,717,413.89 : 12,025,021.69 = 5,448,555.57 : x
2. Step 2: Convert to fraction form
   8,717,413.89/12,025,021.69 = 5,448,555.57/x
3. Step 3: Cross multiply
   8,717,413.89x = 12,025,021.69 × 5,448,555.57
4. Step 4: Simplify right side
   8,717,413.89x = 65,518,998,834,673.82
5. Step 5: Solve for x
   x = 65,518,998,834,673.82/8,717,413.89
6. Step 6: Final answer
   x = 7,515,875.66