Finding the Fourth Proportional to 99.10, 136.82 and 69.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99.10 : 136.82 = 69.59 : x
2. Step 2: Convert to fraction form
   99.10/136.82 = 69.59/x
3. Step 3: Cross multiply
   99.10x = 136.82 × 69.59
4. Step 4: Simplify right side
   99.10x = 9,521.30
5. Step 5: Solve for x
   x = 9,521.30/99.10
6. Step 6: Final answer
   x = 96.08