Finding the Fourth Proportional to 155.82, 233.78 and 53.10

Step by Step Solution

1. Step 1: Write the proportion equation
   155.82 : 233.78 = 53.10 : x
2. Step 2: Convert to fraction form
   155.82/233.78 = 53.10/x
3. Step 3: Cross multiply
   155.82x = 233.78 × 53.10
4. Step 4: Simplify right side
   155.82x = 12,413.72
5. Step 5: Solve for x
   x = 12,413.72/155.82
6. Step 6: Final answer
   x = 79.67