Finding the Fourth Proportional to 139,572.69, 208,413.64 and 110,786.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,572.69 : 208,413.64 = 110,786.69 : x
2. Step 2: Convert to fraction form
   139,572.69/208,413.64 = 110,786.69/x
3. Step 3: Cross multiply
   139,572.69x = 208,413.64 × 110,786.69
4. Step 4: Simplify right side
   139,572.69x = 23,089,457,253.27
5. Step 5: Solve for x
   x = 23,089,457,253.27/139,572.69
6. Step 6: Final answer
   x = 165,429.62