Finding the Fourth Proportional to 89.12, 123.04 and 61.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89.12 : 123.04 = 61.52 : x
2. Step 2: Convert to fraction form
   89.12/123.04 = 61.52/x
3. Step 3: Cross multiply
   89.12x = 123.04 × 61.52
4. Step 4: Simplify right side
   89.12x = 7,569.42
5. Step 5: Solve for x
   x = 7,569.42/89.12
6. Step 6: Final answer
   x = 84.94