Finding the Fourth Proportional to 71.00, 106.41 and 40.55

Step by Step Solution

1. Step 1: Write the proportion equation
   71.00 : 106.41 = 40.55 : x
2. Step 2: Convert to fraction form
   71.00/106.41 = 40.55/x
3. Step 3: Cross multiply
   71.00x = 106.41 × 40.55
4. Step 4: Simplify right side
   71.00x = 4,314.39
5. Step 5: Solve for x
   x = 4,314.39/71.00
6. Step 6: Final answer
   x = 60.77