Finding the Fourth Proportional to 151,673.70, 209,308.32 and 83,691.30

Step by Step Solution

1. Step 1: Write the proportion equation
   151,673.70 : 209,308.32 = 83,691.30 : x
2. Step 2: Convert to fraction form
   151,673.70/209,308.32 = 83,691.30/x
3. Step 3: Cross multiply
   151,673.70x = 209,308.32 × 83,691.30
4. Step 4: Simplify right side
   151,673.70x = 17,517,285,401.62
5. Step 5: Solve for x
   x = 17,517,285,401.62/151,673.70
6. Step 6: Final answer
   x = 115,493.23