Finding the Fourth Proportional to 113.61, 170.18 and 59.34

Step by Step Solution

1. Step 1: Write the proportion equation
   113.61 : 170.18 = 59.34 : x
2. Step 2: Convert to fraction form
   113.61/170.18 = 59.34/x
3. Step 3: Cross multiply
   113.61x = 170.18 × 59.34
4. Step 4: Simplify right side
   113.61x = 10,098.48
5. Step 5: Solve for x
   x = 10,098.48/113.61
6. Step 6: Final answer
   x = 88.89