Finding the Fourth Proportional to 81,774.54, 122,661.38 and 21,809.25

Step by Step Solution

1. Step 1: Write the proportion equation
   81,774.54 : 122,661.38 = 21,809.25 : x
2. Step 2: Convert to fraction form
   81,774.54/122,661.38 = 21,809.25/x
3. Step 3: Cross multiply
   81,774.54x = 122,661.38 × 21,809.25
4. Step 4: Simplify right side
   81,774.54x = 2,675,152,592.72
5. Step 5: Solve for x
   x = 2,675,152,592.72/81,774.54
6. Step 6: Final answer
   x = 32,713.76