Finding the Fourth Proportional to 67.98, 93.96 and 53.58

Step by Step Solution

1. Step 1: Write the proportion equation
   67.98 : 93.96 = 53.58 : x
2. Step 2: Convert to fraction form
   67.98/93.96 = 53.58/x
3. Step 3: Cross multiply
   67.98x = 93.96 × 53.58
4. Step 4: Simplify right side
   67.98x = 5,034.38
5. Step 5: Solve for x
   x = 5,034.38/67.98
6. Step 6: Final answer
   x = 74.06