Finding the Fourth Proportional to 69.69, 96.18 and 42.06

Step by Step Solution

1. Step 1: Write the proportion equation
   69.69 : 96.18 = 42.06 : x
2. Step 2: Convert to fraction form
   69.69/96.18 = 42.06/x
3. Step 3: Cross multiply
   69.69x = 96.18 × 42.06
4. Step 4: Simplify right side
   69.69x = 4,045.33
5. Step 5: Solve for x
   x = 4,045.33/69.69
6. Step 6: Final answer
   x = 58.05