Finding the Fourth Proportional to 89.02, 133.51 and 43.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89.02 : 133.51 = 43.34 : x
2. Step 2: Convert to fraction form
   89.02/133.51 = 43.34/x
3. Step 3: Cross multiply
   89.02x = 133.51 × 43.34
4. Step 4: Simplify right side
   89.02x = 5,786.32
5. Step 5: Solve for x
   x = 5,786.32/89.02
6. Step 6: Final answer
   x = 65.00