Finding the Fourth Proportional to 89.34, 123.24 and 58.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89.34 : 123.24 = 58.25 : x
2. Step 2: Convert to fraction form
   89.34/123.24 = 58.25/x
3. Step 3: Cross multiply
   89.34x = 123.24 × 58.25
4. Step 4: Simplify right side
   89.34x = 7,178.73
5. Step 5: Solve for x
   x = 7,178.73/89.34
6. Step 6: Final answer
   x = 80.35