Finding the Fourth Proportional to 67.58, 101.20 and 51.34

Step by Step Solution

1. Step 1: Write the proportion equation
   67.58 : 101.20 = 51.34 : x
2. Step 2: Convert to fraction form
   67.58/101.20 = 51.34/x
3. Step 3: Cross multiply
   67.58x = 101.20 × 51.34
4. Step 4: Simplify right side
   67.58x = 5,195.61
5. Step 5: Solve for x
   x = 5,195.61/67.58
6. Step 6: Final answer
   x = 76.88