Finding the Fourth Proportional to 116.86, 175.18 and 59.05

Step by Step Solution

1. Step 1: Write the proportion equation
   116.86 : 175.18 = 59.05 : x
2. Step 2: Convert to fraction form
   116.86/175.18 = 59.05/x
3. Step 3: Cross multiply
   116.86x = 175.18 × 59.05
4. Step 4: Simplify right side
   116.86x = 10,344.53
5. Step 5: Solve for x
   x = 10,344.53/116.86
6. Step 6: Final answer
   x = 88.52