Finding the Fourth Proportional to 43.02, 59.31 and 42.08

Step by Step Solution

1. Step 1: Write the proportion equation
   43.02 : 59.31 = 42.08 : x
2. Step 2: Convert to fraction form
   43.02/59.31 = 42.08/x
3. Step 3: Cross multiply
   43.02x = 59.31 × 42.08
4. Step 4: Simplify right side
   43.02x = 2,495.47
5. Step 5: Solve for x
   x = 2,495.47/43.02
6. Step 6: Final answer
   x = 58.01