Finding the Fourth Proportional to 89.82, 123.93 and 54.84

Step by Step Solution

1. Step 1: Write the proportion equation
   89.82 : 123.93 = 54.84 : x
2. Step 2: Convert to fraction form
   89.82/123.93 = 54.84/x
3. Step 3: Cross multiply
   89.82x = 123.93 × 54.84
4. Step 4: Simplify right side
   89.82x = 6,796.32
5. Step 5: Solve for x
   x = 6,796.32/89.82
6. Step 6: Final answer
   x = 75.67