Finding the Fourth Proportional to 67.59, 100.96 and 57.87

Step by Step Solution

1. Step 1: Write the proportion equation
   67.59 : 100.96 = 57.87 : x
2. Step 2: Convert to fraction form
   67.59/100.96 = 57.87/x
3. Step 3: Cross multiply
   67.59x = 100.96 × 57.87
4. Step 4: Simplify right side
   67.59x = 5,842.41
5. Step 5: Solve for x
   x = 5,842.41/67.59
6. Step 6: Final answer
   x = 86.44