Finding the Fourth Proportional to 76.69, 114.96 and 67.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76.69 : 114.96 = 67.10 : x
2. Step 2: Convert to fraction form
   76.69/114.96 = 67.10/x
3. Step 3: Cross multiply
   76.69x = 114.96 × 67.10
4. Step 4: Simplify right side
   76.69x = 7,714.10
5. Step 5: Solve for x
   x = 7,714.10/76.69
6. Step 6: Final answer
   x = 100.59