Finding the Fourth Proportional to 45.41, 67.76 and 42.00

Step by Step Solution

1. Step 1: Write the proportion equation
   45.41 : 67.76 = 42.00 : x
2. Step 2: Convert to fraction form
   45.41/67.76 = 42.00/x
3. Step 3: Cross multiply
   45.41x = 67.76 × 42.00
4. Step 4: Simplify right side
   45.41x = 2,845.61
5. Step 5: Solve for x
   x = 2,845.61/45.41
6. Step 6: Final answer
   x = 62.67