Finding the Fourth Proportional to 89.14, 123.06 and 58.06

Step by Step Solution

1. Step 1: Write the proportion equation
   89.14 : 123.06 = 58.06 : x
2. Step 2: Convert to fraction form
   89.14/123.06 = 58.06/x
3. Step 3: Cross multiply
   89.14x = 123.06 × 58.06
4. Step 4: Simplify right side
   89.14x = 7,144.86
5. Step 5: Solve for x
   x = 7,144.86/89.14
6. Step 6: Final answer
   x = 80.15