Finding the Fourth Proportional to 91.82, 126.83 and 67.39

Step by Step Solution

1. Step 1: Write the proportion equation
   91.82 : 126.83 = 67.39 : x
2. Step 2: Convert to fraction form
   91.82/126.83 = 67.39/x
3. Step 3: Cross multiply
   91.82x = 126.83 × 67.39
4. Step 4: Simplify right side
   91.82x = 8,547.07
5. Step 5: Solve for x
   x = 8,547.07/91.82
6. Step 6: Final answer
   x = 93.09