Finding the Fourth Proportional to 145,788.59, 201,187.35 and 82,146.89

Step by Step Solution

1. Step 1: Write the proportion equation
   145,788.59 : 201,187.35 = 82,146.89 : x
2. Step 2: Convert to fraction form
   145,788.59/201,187.35 = 82,146.89/x
3. Step 3: Cross multiply
   145,788.59x = 201,187.35 × 82,146.89
4. Step 4: Simplify right side
   145,788.59x = 16,526,914,103.90
5. Step 5: Solve for x
   x = 16,526,914,103.90/145,788.59
6. Step 6: Final answer
   x = 113,362.20