Finding the Fourth Proportional to 142.55, 196.82 and 93.51

Step by Step Solution

1. Step 1: Write the proportion equation
   142.55 : 196.82 = 93.51 : x
2. Step 2: Convert to fraction form
   142.55/196.82 = 93.51/x
3. Step 3: Cross multiply
   142.55x = 196.82 × 93.51
4. Step 4: Simplify right side
   142.55x = 18,404.17
5. Step 5: Solve for x
   x = 18,404.17/142.55
6. Step 6: Final answer
   x = 129.11