Finding the Fourth Proportional to 42.53, 59.10 and 42.11

Step by Step Solution

1. Step 1: Write the proportion equation
   42.53 : 59.10 = 42.11 : x
2. Step 2: Convert to fraction form
   42.53/59.10 = 42.11/x
3. Step 3: Cross multiply
   42.53x = 59.10 × 42.11
4. Step 4: Simplify right side
   42.53x = 2,488.70
5. Step 5: Solve for x
   x = 2,488.70/42.53
6. Step 6: Final answer
   x = 58.52