Finding the Fourth Proportional to 99.42, 136.30 and 97.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99.42 : 136.30 = 97.59 : x
2. Step 2: Convert to fraction form
   99.42/136.30 = 97.59/x
3. Step 3: Cross multiply
   99.42x = 136.30 × 97.59
4. Step 4: Simplify right side
   99.42x = 13,301.52
5. Step 5: Solve for x
   x = 13,301.52/99.42
6. Step 6: Final answer
   x = 133.79