Finding the Fourth Proportional to 223,976.75, 335,763.43 and 81,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   223,976.75 : 335,763.43 = 81,722.72 : x
2. Step 2: Convert to fraction form
   223,976.75/335,763.43 = 81,722.72/x
3. Step 3: Cross multiply
   223,976.75x = 335,763.43 × 81,722.72
4. Step 4: Simplify right side
   223,976.75x = 27,439,501,411.23
5. Step 5: Solve for x
   x = 27,439,501,411.23/223,976.75
6. Step 6: Final answer
   x = 122,510.49