Finding the Fourth Proportional to 162,158.78, 243,238.16 and 82,184.29

Step by Step Solution

1. Step 1: Write the proportion equation
   162,158.78 : 243,238.16 = 82,184.29 : x
2. Step 2: Convert to fraction form
   162,158.78/243,238.16 = 82,184.29/x
3. Step 3: Cross multiply
   162,158.78x = 243,238.16 × 82,184.29
4. Step 4: Simplify right side
   162,158.78x = 19,990,355,480.51
5. Step 5: Solve for x
   x = 19,990,355,480.51/162,158.78
6. Step 6: Final answer
   x = 123,276.43