Finding the Fourth Proportional to 89.94, 123.98 and 68.06

Step by Step Solution

1. Step 1: Write the proportion equation
   89.94 : 123.98 = 68.06 : x
2. Step 2: Convert to fraction form
   89.94/123.98 = 68.06/x
3. Step 3: Cross multiply
   89.94x = 123.98 × 68.06
4. Step 4: Simplify right side
   89.94x = 8,438.08
5. Step 5: Solve for x
   x = 8,438.08/89.94
6. Step 6: Final answer
   x = 93.82