Finding the Fourth Proportional to 112.56, 155.33 and 65.94

Step by Step Solution

1. Step 1: Write the proportion equation
   112.56 : 155.33 = 65.94 : x
2. Step 2: Convert to fraction form
   112.56/155.33 = 65.94/x
3. Step 3: Cross multiply
   112.56x = 155.33 × 65.94
4. Step 4: Simplify right side
   112.56x = 10,242.46
5. Step 5: Solve for x
   x = 10,242.46/112.56
6. Step 6: Final answer
   x = 91.00