Finding the Fourth Proportional to 145,973.72, 201,443.76 and 82,311.51

Step by Step Solution

1. Step 1: Write the proportion equation
   145,973.72 : 201,443.76 = 82,311.51 : x
2. Step 2: Convert to fraction form
   145,973.72/201,443.76 = 82,311.51/x
3. Step 3: Cross multiply
   145,973.72x = 201,443.76 × 82,311.51
4. Step 4: Simplify right side
   145,973.72x = 16,581,140,065.68
5. Step 5: Solve for x
   x = 16,581,140,065.68/145,973.72
6. Step 6: Final answer
   x = 113,589.90