Finding the Fourth Proportional to 89.94, 123.81 and 83.46

Step by Step Solution

1. Step 1: Write the proportion equation
   89.94 : 123.81 = 83.46 : x
2. Step 2: Convert to fraction form
   89.94/123.81 = 83.46/x
3. Step 3: Cross multiply
   89.94x = 123.81 × 83.46
4. Step 4: Simplify right side
   89.94x = 10,333.18
5. Step 5: Solve for x
   x = 10,333.18/89.94
6. Step 6: Final answer
   x = 114.89