Finding the Fourth Proportional to 117,839.91, 162,809.55 and 82,189.11

Step by Step Solution

1. Step 1: Write the proportion equation
   117,839.91 : 162,809.55 = 82,189.11 : x
2. Step 2: Convert to fraction form
   117,839.91/162,809.55 = 82,189.11/x
3. Step 3: Cross multiply
   117,839.91x = 162,809.55 × 82,189.11
4. Step 4: Simplify right side
   117,839.91x = 13,381,172,014.00
5. Step 5: Solve for x
   x = 13,381,172,014.00/117,839.91
6. Step 6: Final answer
   x = 113,553.82