Finding the Fourth Proportional to 161,805.94, 242,533.59 and 82,811.86

Step by Step Solution

1. Step 1: Write the proportion equation
   161,805.94 : 242,533.59 = 82,811.86 : x
2. Step 2: Convert to fraction form
   161,805.94/242,533.59 = 82,811.86/x
3. Step 3: Cross multiply
   161,805.94x = 242,533.59 × 82,811.86
4. Step 4: Simplify right side
   161,805.94x = 20,084,657,700.38
5. Step 5: Solve for x
   x = 20,084,657,700.38/161,805.94
6. Step 6: Final answer
   x = 124,128.06