Finding the Fourth Proportional to 67.31, 100.83 and 34.77

Step by Step Solution

1. Step 1: Write the proportion equation
   67.31 : 100.83 = 34.77 : x
2. Step 2: Convert to fraction form
   67.31/100.83 = 34.77/x
3. Step 3: Cross multiply
   67.31x = 100.83 × 34.77
4. Step 4: Simplify right side
   67.31x = 3,505.86
5. Step 5: Solve for x
   x = 3,505.86/67.31
6. Step 6: Final answer
   x = 52.09