Finding the Fourth Proportional to 42.71, 59.26 and 42.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42.71 : 59.26 = 42.36 : x
2. Step 2: Convert to fraction form
   42.71/59.26 = 42.36/x
3. Step 3: Cross multiply
   42.71x = 59.26 × 42.36
4. Step 4: Simplify right side
   42.71x = 2,510.25
5. Step 5: Solve for x
   x = 2,510.25/42.71
6. Step 6: Final answer
   x = 58.77