Finding the Fourth Proportional to 141.83, 212.52 and 103.25

Step by Step Solution

1. Step 1: Write the proportion equation
   141.83 : 212.52 = 103.25 : x
2. Step 2: Convert to fraction form
   141.83/212.52 = 103.25/x
3. Step 3: Cross multiply
   141.83x = 212.52 × 103.25
4. Step 4: Simplify right side
   141.83x = 21,942.69
5. Step 5: Solve for x
   x = 21,942.69/141.83
6. Step 6: Final answer
   x = 154.71