Finding the Fourth Proportional to 76.22, 114.25 and 42.00

Step by Step Solution

1. Step 1: Write the proportion equation
   76.22 : 114.25 = 42.00 : x
2. Step 2: Convert to fraction form
   76.22/114.25 = 42.00/x
3. Step 3: Cross multiply
   76.22x = 114.25 × 42.00
4. Step 4: Simplify right side
   76.22x = 4,798.16
5. Step 5: Solve for x
   x = 4,798.16/76.22
6. Step 6: Final answer
   x = 62.95