Finding the Fourth Proportional to 89.30, 133.94 and 37.92

Step by Step Solution

1. Step 1: Write the proportion equation
   89.30 : 133.94 = 37.92 : x
2. Step 2: Convert to fraction form
   89.30/133.94 = 37.92/x
3. Step 3: Cross multiply
   89.30x = 133.94 × 37.92
4. Step 4: Simplify right side
   89.30x = 5,078.82
5. Step 5: Solve for x
   x = 5,078.82/89.30
6. Step 6: Final answer
   x = 56.88