Finding the Fourth Proportional to 89.41, 123.33 and 70.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89.41 : 123.33 = 70.96 : x
2. Step 2: Convert to fraction form
   89.41/123.33 = 70.96/x
3. Step 3: Cross multiply
   89.41x = 123.33 × 70.96
4. Step 4: Simplify right side
   89.41x = 8,751.50
5. Step 5: Solve for x
   x = 8,751.50/89.41
6. Step 6: Final answer
   x = 97.88