Finding the Fourth Proportional to 59.49, 81.94 and 55.17

Step by Step Solution

1. Step 1: Write the proportion equation
   59.49 : 81.94 = 55.17 : x
2. Step 2: Convert to fraction form
   59.49/81.94 = 55.17/x
3. Step 3: Cross multiply
   59.49x = 81.94 × 55.17
4. Step 4: Simplify right side
   59.49x = 4,520.63
5. Step 5: Solve for x
   x = 4,520.63/59.49
6. Step 6: Final answer
   x = 75.99