Finding the Fourth Proportional to 245.12, 367.72 and 100.82

Step by Step Solution

1. Step 1: Write the proportion equation
   245.12 : 367.72 = 100.82 : x
2. Step 2: Convert to fraction form
   245.12/367.72 = 100.82/x
3. Step 3: Cross multiply
   245.12x = 367.72 × 100.82
4. Step 4: Simplify right side
   245.12x = 37,073.53
5. Step 5: Solve for x
   x = 37,073.53/245.12
6. Step 6: Final answer
   x = 151.25