Finding the Fourth Proportional to 151,917.50, 209,628.27 and 83,930.42

Step by Step Solution

1. Step 1: Write the proportion equation
   151,917.50 : 209,628.27 = 83,930.42 : x
2. Step 2: Convert to fraction form
   151,917.50/209,628.27 = 83,930.42/x
3. Step 3: Cross multiply
   151,917.50x = 209,628.27 × 83,930.42
4. Step 4: Simplify right side
   151,917.50x = 17,594,187,696.83
5. Step 5: Solve for x
   x = 17,594,187,696.83/151,917.50
6. Step 6: Final answer
   x = 115,814.10