Finding the Fourth Proportional to 67.47, 93.05 and 42.56

Step by Step Solution

1. Step 1: Write the proportion equation
   67.47 : 93.05 = 42.56 : x
2. Step 2: Convert to fraction form
   67.47/93.05 = 42.56/x
3. Step 3: Cross multiply
   67.47x = 93.05 × 42.56
4. Step 4: Simplify right side
   67.47x = 3,960.31
5. Step 5: Solve for x
   x = 3,960.31/67.47
6. Step 6: Final answer
   x = 58.70