Finding the Fourth Proportional to 77.59, 116.27 and 43.30

Step by Step Solution

1. Step 1: Write the proportion equation
   77.59 : 116.27 = 43.30 : x
2. Step 2: Convert to fraction form
   77.59/116.27 = 43.30/x
3. Step 3: Cross multiply
   77.59x = 116.27 × 43.30
4. Step 4: Simplify right side
   77.59x = 5,033.69
5. Step 5: Solve for x
   x = 5,033.69/77.59
6. Step 6: Final answer
   x = 64.88