Finding the Fourth Proportional to 141.31, 212.01 and 50.05

Step by Step Solution

1. Step 1: Write the proportion equation
   141.31 : 212.01 = 50.05 : x
2. Step 2: Convert to fraction form
   141.31/212.01 = 50.05/x
3. Step 3: Cross multiply
   141.31x = 212.01 × 50.05
4. Step 4: Simplify right side
   141.31x = 10,611.10
5. Step 5: Solve for x
   x = 10,611.10/141.31
6. Step 6: Final answer
   x = 75.09