Finding the Fourth Proportional to 42.02, 62.91 and 35.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42.02 : 62.91 = 35.58 : x
2. Step 2: Convert to fraction form
   42.02/62.91 = 35.58/x
3. Step 3: Cross multiply
   42.02x = 62.91 × 35.58
4. Step 4: Simplify right side
   42.02x = 2,238.34
5. Step 5: Solve for x
   x = 2,238.34/42.02
6. Step 6: Final answer
   x = 53.27