Finding the Fourth Proportional to 141.99, 196.01 and 100.58

Step by Step Solution

1. Step 1: Write the proportion equation
   141.99 : 196.01 = 100.58 : x
2. Step 2: Convert to fraction form
   141.99/196.01 = 100.58/x
3. Step 3: Cross multiply
   141.99x = 196.01 × 100.58
4. Step 4: Simplify right side
   141.99x = 19,714.69
5. Step 5: Solve for x
   x = 19,714.69/141.99
6. Step 6: Final answer
   x = 138.85