Finding the Fourth Proportional to 42.05, 63.01 and 38.00

Step by Step Solution

1. Step 1: Write the proportion equation
   42.05 : 63.01 = 38.00 : x
2. Step 2: Convert to fraction form
   42.05/63.01 = 38.00/x
3. Step 3: Cross multiply
   42.05x = 63.01 × 38.00
4. Step 4: Simplify right side
   42.05x = 2,394.59
5. Step 5: Solve for x
   x = 2,394.59/42.05
6. Step 6: Final answer
   x = 56.94