Finding the Fourth Proportional to 67.69, 93.40 and 53.83

Step by Step Solution

1. Step 1: Write the proportion equation
   67.69 : 93.40 = 53.83 : x
2. Step 2: Convert to fraction form
   67.69/93.40 = 53.83/x
3. Step 3: Cross multiply
   67.69x = 93.40 × 53.83
4. Step 4: Simplify right side
   67.69x = 5,027.72
5. Step 5: Solve for x
   x = 5,027.72/67.69
6. Step 6: Final answer
   x = 74.28