Finding the Fourth Proportional to 82,079, 123,134.70 and 25,927.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,079 : 123,134.70 = 25,927.78 : x
2. Step 2: Convert to fraction form
   82,079/123,134.70 = 25,927.78/x
3. Step 3: Cross multiply
   82,079x = 123,134.70 × 25,927.78
4. Step 4: Simplify right side
   82,079x = 3,192,608,796.29
5. Step 5: Solve for x
   x = 3,192,608,796.29/82,079
6. Step 6: Final answer
   x = 38,896.78