Finding the Fourth Proportional to 161,665.98, 242,349.49 and 82,605.93

Step by Step Solution

1. Step 1: Write the proportion equation
   161,665.98 : 242,349.49 = 82,605.93 : x
2. Step 2: Convert to fraction form
   161,665.98/242,349.49 = 82,605.93/x
3. Step 3: Cross multiply
   161,665.98x = 242,349.49 × 82,605.93
4. Step 4: Simplify right side
   161,665.98x = 20,019,505,006.48
5. Step 5: Solve for x
   x = 20,019,505,006.48/161,665.98
6. Step 6: Final answer
   x = 123,832.52