Finding the Fourth Proportional to 108,256.69, 149,413.47 and 79,617.93

Step by Step Solution

1. Step 1: Write the proportion equation
   108,256.69 : 149,413.47 = 79,617.93 : x
2. Step 2: Convert to fraction form
   108,256.69/149,413.47 = 79,617.93/x
3. Step 3: Cross multiply
   108,256.69x = 149,413.47 × 79,617.93
4. Step 4: Simplify right side
   108,256.69x = 11,895,991,195.52
5. Step 5: Solve for x
   x = 11,895,991,195.52/108,256.69
6. Step 6: Final answer
   x = 109,886.89