Finding the Fourth Proportional to 67.91, 93.76 and 42.08

Step by Step Solution

1. Step 1: Write the proportion equation
   67.91 : 93.76 = 42.08 : x
2. Step 2: Convert to fraction form
   67.91/93.76 = 42.08/x
3. Step 3: Cross multiply
   67.91x = 93.76 × 42.08
4. Step 4: Simplify right side
   67.91x = 3,944.98
5. Step 5: Solve for x
   x = 3,944.98/67.91
6. Step 6: Final answer
   x = 58.09