Finding the Fourth Proportional to 100.44, 150.69 and 39.61

Step by Step Solution

1. Step 1: Write the proportion equation
   100.44 : 150.69 = 39.61 : x
2. Step 2: Convert to fraction form
   100.44/150.69 = 39.61/x
3. Step 3: Cross multiply
   100.44x = 150.69 × 39.61
4. Step 4: Simplify right side
   100.44x = 5,968.32
5. Step 5: Solve for x
   x = 5,968.32/100.44
6. Step 6: Final answer
   x = 59.42