Finding the Fourth Proportional to 43.30, 59.31 and 43.18

Step by Step Solution

1. Step 1: Write the proportion equation
   43.30 : 59.31 = 43.18 : x
2. Step 2: Convert to fraction form
   43.30/59.31 = 43.18/x
3. Step 3: Cross multiply
   43.30x = 59.31 × 43.18
4. Step 4: Simplify right side
   43.30x = 2,561.01
5. Step 5: Solve for x
   x = 2,561.01/43.30
6. Step 6: Final answer
   x = 59.15