Finding the Fourth Proportional to 155,413.05, 233,118.78 and 134,288.81

Step by Step Solution

1. Step 1: Write the proportion equation
   155,413.05 : 233,118.78 = 134,288.81 : x
2. Step 2: Convert to fraction form
   155,413.05/233,118.78 = 134,288.81/x
3. Step 3: Cross multiply
   155,413.05x = 233,118.78 × 134,288.81
4. Step 4: Simplify right side
   155,413.05x = 31,305,243,767.04
5. Step 5: Solve for x
   x = 31,305,243,767.04/155,413.05
6. Step 6: Final answer
   x = 201,432.53