Finding the Fourth Proportional to 67.91, 93.42 and 59.58

Step by Step Solution

1. Step 1: Write the proportion equation
   67.91 : 93.42 = 59.58 : x
2. Step 2: Convert to fraction form
   67.91/93.42 = 59.58/x
3. Step 3: Cross multiply
   67.91x = 93.42 × 59.58
4. Step 4: Simplify right side
   67.91x = 5,565.96
5. Step 5: Solve for x
   x = 5,565.96/67.91
6. Step 6: Final answer
   x = 81.97