Finding the Fourth Proportional to 59.31, 88.83 and 45.68

Step by Step Solution

1. Step 1: Write the proportion equation
   59.31 : 88.83 = 45.68 : x
2. Step 2: Convert to fraction form
   59.31/88.83 = 45.68/x
3. Step 3: Cross multiply
   59.31x = 88.83 × 45.68
4. Step 4: Simplify right side
   59.31x = 4,057.31
5. Step 5: Solve for x
   x = 4,057.31/59.31
6. Step 6: Final answer
   x = 68.41