Finding the Fourth Proportional to 89.36, 123.30 and 73.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89.36 : 123.30 = 73.94 : x
2. Step 2: Convert to fraction form
   89.36/123.30 = 73.94/x
3. Step 3: Cross multiply
   89.36x = 123.30 × 73.94
4. Step 4: Simplify right side
   89.36x = 9,116.80
5. Step 5: Solve for x
   x = 9,116.80/89.36
6. Step 6: Final answer
   x = 102.02