Finding the Fourth Proportional to 106,323.39, 159,485.31 and 72,942.26

Step by Step Solution

1. Step 1: Write the proportion equation
   106,323.39 : 159,485.31 = 72,942.26 : x
2. Step 2: Convert to fraction form
   106,323.39/159,485.31 = 72,942.26/x
3. Step 3: Cross multiply
   106,323.39x = 159,485.31 × 72,942.26
4. Step 4: Simplify right side
   106,323.39x = 11,633,218,150.77
5. Step 5: Solve for x
   x = 11,633,218,150.77/106,323.39
6. Step 6: Final answer
   x = 109,413.54