Finding the Fourth Proportional to 95.88, 142.79 and 89.94

Step by Step Solution

1. Step 1: Write the proportion equation
   95.88 : 142.79 = 89.94 : x
2. Step 2: Convert to fraction form
   95.88/142.79 = 89.94/x
3. Step 3: Cross multiply
   95.88x = 142.79 × 89.94
4. Step 4: Simplify right side
   95.88x = 12,842.53
5. Step 5: Solve for x
   x = 12,842.53/95.88
6. Step 6: Final answer
   x = 133.94