Finding the Fourth Proportional to 100.56, 150.83 and 28.41

Step by Step Solution

1. Step 1: Write the proportion equation
   100.56 : 150.83 = 28.41 : x
2. Step 2: Convert to fraction form
   100.56/150.83 = 28.41/x
3. Step 3: Cross multiply
   100.56x = 150.83 × 28.41
4. Step 4: Simplify right side
   100.56x = 4,284.94
5. Step 5: Solve for x
   x = 4,284.94/100.56
6. Step 6: Final answer
   x = 42.61