Finding the Fourth Proportional to 89.94, 134.82 and 61.14

Step by Step Solution

1. Step 1: Write the proportion equation
   89.94 : 134.82 = 61.14 : x
2. Step 2: Convert to fraction form
   89.94/134.82 = 61.14/x
3. Step 3: Cross multiply
   89.94x = 134.82 × 61.14
4. Step 4: Simplify right side
   89.94x = 8,242.89
5. Step 5: Solve for x
   x = 8,242.89/89.94
6. Step 6: Final answer
   x = 91.65