Finding the Fourth Proportional to 81,644.76, 122,494.41 and 31,726.49

Step by Step Solution

1. Step 1: Write the proportion equation
   81,644.76 : 122,494.41 = 31,726.49 : x
2. Step 2: Convert to fraction form
   81,644.76/122,494.41 = 31,726.49/x
3. Step 3: Cross multiply
   81,644.76x = 122,494.41 × 31,726.49
4. Step 4: Simplify right side
   81,644.76x = 3,886,317,061.45
5. Step 5: Solve for x
   x = 3,886,317,061.45/81,644.76
6. Step 6: Final answer
   x = 47,600.32