Finding the Fourth Proportional to 81,620.37, 122,431.32 and 24,694.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,620.37 : 122,431.32 = 24,694.72 : x
2. Step 2: Convert to fraction form
   81,620.37/122,431.32 = 24,694.72/x
3. Step 3: Cross multiply
   81,620.37x = 122,431.32 × 24,694.72
4. Step 4: Simplify right side
   81,620.37x = 3,023,407,166.63
5. Step 5: Solve for x
   x = 3,023,407,166.63/81,620.37
6. Step 6: Final answer
   x = 37,042.31