Finding the Fourth Proportional to 141.27, 212.00 and 72.84

Step by Step Solution

1. Step 1: Write the proportion equation
   141.27 : 212.00 = 72.84 : x
2. Step 2: Convert to fraction form
   141.27/212.00 = 72.84/x
3. Step 3: Cross multiply
   141.27x = 212.00 × 72.84
4. Step 4: Simplify right side
   141.27x = 15,441.72
5. Step 5: Solve for x
   x = 15,441.72/141.27
6. Step 6: Final answer
   x = 109.31