Finding the Fourth Proportional to 142,827.50, 196,948.46 and 120,413.49

Step by Step Solution

1. Step 1: Write the proportion equation
   142,827.50 : 196,948.46 = 120,413.49 : x
2. Step 2: Convert to fraction form
   142,827.50/196,948.46 = 120,413.49/x
3. Step 3: Cross multiply
   142,827.50x = 196,948.46 × 120,413.49
4. Step 4: Simplify right side
   142,827.50x = 23,715,250,981.20
5. Step 5: Solve for x
   x = 23,715,250,981.20/142,827.50
6. Step 6: Final answer
   x = 166,041.21