Finding the Fourth Proportional to 153.83, 230.71 and 57.59

Step by Step Solution

1. Step 1: Write the proportion equation
   153.83 : 230.71 = 57.59 : x
2. Step 2: Convert to fraction form
   153.83/230.71 = 57.59/x
3. Step 3: Cross multiply
   153.83x = 230.71 × 57.59
4. Step 4: Simplify right side
   153.83x = 13,286.59
5. Step 5: Solve for x
   x = 13,286.59/153.83
6. Step 6: Final answer
   x = 86.37