Finding the Fourth Proportional to 99.83, 137.82 and 67.14

Step by Step Solution

1. Step 1: Write the proportion equation
   99.83 : 137.82 = 67.14 : x
2. Step 2: Convert to fraction form
   99.83/137.82 = 67.14/x
3. Step 3: Cross multiply
   99.83x = 137.82 × 67.14
4. Step 4: Simplify right side
   99.83x = 9,253.23
5. Step 5: Solve for x
   x = 9,253.23/99.83
6. Step 6: Final answer
   x = 92.69