Finding the Fourth Proportional to 78.93, 118.35 and 59.67

Step by Step Solution

1. Step 1: Write the proportion equation
   78.93 : 118.35 = 59.67 : x
2. Step 2: Convert to fraction form
   78.93/118.35 = 59.67/x
3. Step 3: Cross multiply
   78.93x = 118.35 × 59.67
4. Step 4: Simplify right side
   78.93x = 7,061.94
5. Step 5: Solve for x
   x = 7,061.94/78.93
6. Step 6: Final answer
   x = 89.47