Finding the Fourth Proportional to 151,784.12, 209,456.61 and 83,799.61

Step by Step Solution

1. Step 1: Write the proportion equation
   151,784.12 : 209,456.61 = 83,799.61 : x
2. Step 2: Convert to fraction form
   151,784.12/209,456.61 = 83,799.61/x
3. Step 3: Cross multiply
   151,784.12x = 209,456.61 × 83,799.61
4. Step 4: Simplify right side
   151,784.12x = 17,552,382,229.92
5. Step 5: Solve for x
   x = 17,552,382,229.92/151,784.12
6. Step 6: Final answer
   x = 115,640.44