Finding the Fourth Proportional to 67.13, 92.61 and 42.56

Step by Step Solution

1. Step 1: Write the proportion equation
   67.13 : 92.61 = 42.56 : x
2. Step 2: Convert to fraction form
   67.13/92.61 = 42.56/x
3. Step 3: Cross multiply
   67.13x = 92.61 × 42.56
4. Step 4: Simplify right side
   67.13x = 3,941.37
5. Step 5: Solve for x
   x = 3,941.37/67.13
6. Step 6: Final answer
   x = 58.71