Finding the Fourth Proportional to 82,087.07, 123,137.59 and 25,912.15

Step by Step Solution

1. Step 1: Write the proportion equation
   82,087.07 : 123,137.59 = 25,912.15 : x
2. Step 2: Convert to fraction form
   82,087.07/123,137.59 = 25,912.15/x
3. Step 3: Cross multiply
   82,087.07x = 123,137.59 × 25,912.15
4. Step 4: Simplify right side
   82,087.07x = 3,190,759,637.94
5. Step 5: Solve for x
   x = 3,190,759,637.94/82,087.07
6. Step 6: Final answer
   x = 38,870.43