Finding the Fourth Proportional to 250,620.17, 376,008.20 and 82,141.97

Step by Step Solution

1. Step 1: Write the proportion equation
   250,620.17 : 376,008.20 = 82,141.97 : x
2. Step 2: Convert to fraction form
   250,620.17/376,008.20 = 82,141.97/x
3. Step 3: Cross multiply
   250,620.17x = 376,008.20 × 82,141.97
4. Step 4: Simplify right side
   250,620.17x = 30,886,054,284.15
5. Step 5: Solve for x
   x = 30,886,054,284.15/250,620.17
6. Step 6: Final answer
   x = 123,238.50