Finding the Fourth Proportional to 105.15, 157.59 and 59.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105.15 : 157.59 = 59.52 : x
2. Step 2: Convert to fraction form
   105.15/157.59 = 59.52/x
3. Step 3: Cross multiply
   105.15x = 157.59 × 59.52
4. Step 4: Simplify right side
   105.15x = 9,379.76
5. Step 5: Solve for x
   x = 9,379.76/105.15
6. Step 6: Final answer
   x = 89.20