Finding the Fourth Proportional to 89.06, 133.61 and 37.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89.06 : 133.61 = 37.72 : x
2. Step 2: Convert to fraction form
   89.06/133.61 = 37.72/x
3. Step 3: Cross multiply
   89.06x = 133.61 × 37.72
4. Step 4: Simplify right side
   89.06x = 5,039.75
5. Step 5: Solve for x
   x = 5,039.75/89.06
6. Step 6: Final answer
   x = 56.59