Finding the Fourth Proportional to 42.81, 63.83 and 41.00

Step by Step Solution

1. Step 1: Write the proportion equation
   42.81 : 63.83 = 41.00 : x
2. Step 2: Convert to fraction form
   42.81/63.83 = 41.00/x
3. Step 3: Cross multiply
   42.81x = 63.83 × 41.00
4. Step 4: Simplify right side
   42.81x = 2,616.51
5. Step 5: Solve for x
   x = 2,616.51/42.81
6. Step 6: Final answer
   x = 61.12