Finding the Fourth Proportional to 43.29, 59.70 and 42.69

Step by Step Solution

1. Step 1: Write the proportion equation
   43.29 : 59.70 = 42.69 : x
2. Step 2: Convert to fraction form
   43.29/59.70 = 42.69/x
3. Step 3: Cross multiply
   43.29x = 59.70 × 42.69
4. Step 4: Simplify right side
   43.29x = 2,548.59
5. Step 5: Solve for x
   x = 2,548.59/43.29
6. Step 6: Final answer
   x = 58.87