Finding the Fourth Proportional to 81,998.72, 122,998.56 and 25,073.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,998.72 : 122,998.56 = 25,073.12 : x
2. Step 2: Convert to fraction form
   81,998.72/122,998.56 = 25,073.12/x
3. Step 3: Cross multiply
   81,998.72x = 122,998.56 × 25,073.12
4. Step 4: Simplify right side
   81,998.72x = 3,083,957,654.71
5. Step 5: Solve for x
   x = 3,083,957,654.71/81,998.72
6. Step 6: Final answer
   x = 37,609.83