Finding the Fourth Proportional to 102.59, 141.59 and 83.33

Step by Step Solution

1. Step 1: Write the proportion equation
   102.59 : 141.59 = 83.33 : x
2. Step 2: Convert to fraction form
   102.59/141.59 = 83.33/x
3. Step 3: Cross multiply
   102.59x = 141.59 × 83.33
4. Step 4: Simplify right side
   102.59x = 11,798.28
5. Step 5: Solve for x
   x = 11,798.28/102.59
6. Step 6: Final answer
   x = 115.00