Finding the Fourth Proportional to 82,618.48, 123,826.20 and 38,185.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,618.48 : 123,826.20 = 38,185.12 : x
2. Step 2: Convert to fraction form
   82,618.48/123,826.20 = 38,185.12/x
3. Step 3: Cross multiply
   82,618.48x = 123,826.20 × 38,185.12
4. Step 4: Simplify right side
   82,618.48x = 4,728,318,306.14
5. Step 5: Solve for x
   x = 4,728,318,306.14/82,618.48
6. Step 6: Final answer
   x = 57,230.76