Finding the Fourth Proportional to 105.83, 158.69 and 60.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105.83 : 158.69 = 60.10 : x
2. Step 2: Convert to fraction form
   105.83/158.69 = 60.10/x
3. Step 3: Cross multiply
   105.83x = 158.69 × 60.10
4. Step 4: Simplify right side
   105.83x = 9,537.02
5. Step 5: Solve for x
   x = 9,537.02/105.83
6. Step 6: Final answer
   x = 90.12