Finding the Fourth Proportional to 78.67, 118.00 and 33.00

Step by Step Solution

1. Step 1: Write the proportion equation
   78.67 : 118.00 = 33.00 : x
2. Step 2: Convert to fraction form
   78.67/118.00 = 33.00/x
3. Step 3: Cross multiply
   78.67x = 118.00 × 33.00
4. Step 4: Simplify right side
   78.67x = 3,893.60
5. Step 5: Solve for x
   x = 3,893.60/78.67
6. Step 6: Final answer
   x = 49.49