Finding the Fourth Proportional to 161,606.75, 242,142.82 and 82,612.31

Step by Step Solution

1. Step 1: Write the proportion equation
   161,606.75 : 242,142.82 = 82,612.31 : x
2. Step 2: Convert to fraction form
   161,606.75/242,142.82 = 82,612.31/x
3. Step 3: Cross multiply
   161,606.75x = 242,142.82 × 82,612.31
4. Step 4: Simplify right side
   161,606.75x = 20,003,976,292.87
5. Step 5: Solve for x
   x = 20,003,976,292.87/161,606.75
6. Step 6: Final answer
   x = 123,781.82