Finding the Fourth Proportional to 89.34, 134.01 and 53.22

Step by Step Solution

1. Step 1: Write the proportion equation
   89.34 : 134.01 = 53.22 : x
2. Step 2: Convert to fraction form
   89.34/134.01 = 53.22/x
3. Step 3: Cross multiply
   89.34x = 134.01 × 53.22
4. Step 4: Simplify right side
   89.34x = 7,132.01
5. Step 5: Solve for x
   x = 7,132.01/89.34
6. Step 6: Final answer
   x = 79.83