Finding the Fourth Proportional to 46.76, 69.89 and 42.18

Step by Step Solution

1. Step 1: Write the proportion equation
   46.76 : 69.89 = 42.18 : x
2. Step 2: Convert to fraction form
   46.76/69.89 = 42.18/x
3. Step 3: Cross multiply
   46.76x = 69.89 × 42.18
4. Step 4: Simplify right side
   46.76x = 2,947.96
5. Step 5: Solve for x
   x = 2,947.96/46.76
6. Step 6: Final answer
   x = 63.04