Finding the Fourth Proportional to 215,085.92, 322,348.56 and 109,816.16

Step by Step Solution

1. Step 1: Write the proportion equation
   215,085.92 : 322,348.56 = 109,816.16 : x
2. Step 2: Convert to fraction form
   215,085.92/322,348.56 = 109,816.16/x
3. Step 3: Cross multiply
   215,085.92x = 322,348.56 × 109,816.16
4. Step 4: Simplify right side
   215,085.92x = 35,399,081,040.73
5. Step 5: Solve for x
   x = 35,399,081,040.73/215,085.92
6. Step 6: Final answer
   x = 164,581.12