Finding the Fourth Proportional to 67.94, 102.06 and 57.92

Step by Step Solution

1. Step 1: Write the proportion equation
   67.94 : 102.06 = 57.92 : x
2. Step 2: Convert to fraction form
   67.94/102.06 = 57.92/x
3. Step 3: Cross multiply
   67.94x = 102.06 × 57.92
4. Step 4: Simplify right side
   67.94x = 5,910.80
5. Step 5: Solve for x
   x = 5,910.80/67.94
6. Step 6: Final answer
   x = 87.00