Finding the Fourth Proportional to 73.58, 100.82 and 72.62

Step by Step Solution

1. Step 1: Write the proportion equation
   73.58 : 100.82 = 72.62 : x
2. Step 2: Convert to fraction form
   73.58/100.82 = 72.62/x
3. Step 3: Cross multiply
   73.58x = 100.82 × 72.62
4. Step 4: Simplify right side
   73.58x = 7,321.19
5. Step 5: Solve for x
   x = 7,321.19/73.58
6. Step 6: Final answer
   x = 99.50