Finding the Fourth Proportional to 82,492.16, 123,738.24 and 20,162.56

Step by Step Solution

1. Step 1: Write the proportion equation
   82,492.16 : 123,738.24 = 20,162.56 : x
2. Step 2: Convert to fraction form
   82,492.16/123,738.24 = 20,162.56/x
3. Step 3: Cross multiply
   82,492.16x = 123,738.24 × 20,162.56
4. Step 4: Simplify right side
   82,492.16x = 2,494,879,688.29
5. Step 5: Solve for x
   x = 2,494,879,688.29/82,492.16
6. Step 6: Final answer
   x = 30,243.84