Finding the Fourth Proportional to 89.51, 134.18 and 43.83

Step by Step Solution

1. Step 1: Write the proportion equation
   89.51 : 134.18 = 43.83 : x
2. Step 2: Convert to fraction form
   89.51/134.18 = 43.83/x
3. Step 3: Cross multiply
   89.51x = 134.18 × 43.83
4. Step 4: Simplify right side
   89.51x = 5,880.89
5. Step 5: Solve for x
   x = 5,880.89/89.51
6. Step 6: Final answer
   x = 65.70