Finding the Fourth Proportional to 81,787.98, 122,681.82 and 25,632.39

Step by Step Solution

1. Step 1: Write the proportion equation
   81,787.98 : 122,681.82 = 25,632.39 : x
2. Step 2: Convert to fraction form
   81,787.98/122,681.82 = 25,632.39/x
3. Step 3: Cross multiply
   81,787.98x = 122,681.82 × 25,632.39
4. Step 4: Simplify right side
   81,787.98x = 3,144,628,256.15
5. Step 5: Solve for x
   x = 3,144,628,256.15/81,787.98
6. Step 6: Final answer
   x = 38,448.54