Finding the Fourth Proportional to 108,111.36, 149,218.56 and 63,413.76

Step by Step Solution

1. Step 1: Write the proportion equation
   108,111.36 : 149,218.56 = 63,413.76 : x
2. Step 2: Convert to fraction form
   108,111.36/149,218.56 = 63,413.76/x
3. Step 3: Cross multiply
   108,111.36x = 149,218.56 × 63,413.76
4. Step 4: Simplify right side
   108,111.36x = 9,462,509,951.39
5. Step 5: Solve for x
   x = 9,462,509,951.39/108,111.36
6. Step 6: Final answer
   x = 87,525.58