Finding the Fourth Proportional to 148.82, 222.78 and 105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148.82 : 222.78 = 105.50 : x
2. Step 2: Convert to fraction form
   148.82/222.78 = 105.50/x
3. Step 3: Cross multiply
   148.82x = 222.78 × 105.50
4. Step 4: Simplify right side
   148.82x = 23,503.29
5. Step 5: Solve for x
   x = 23,503.29/148.82
6. Step 6: Final answer
   x = 157.93