Finding the Fourth Proportional to 82,409.78, 123,573.72 and 26,242.56

Step by Step Solution

1. Step 1: Write the proportion equation
   82,409.78 : 123,573.72 = 26,242.56 : x
2. Step 2: Convert to fraction form
   82,409.78/123,573.72 = 26,242.56/x
3. Step 3: Cross multiply
   82,409.78x = 123,573.72 × 26,242.56
4. Step 4: Simplify right side
   82,409.78x = 3,242,890,761.52
5. Step 5: Solve for x
   x = 3,242,890,761.52/82,409.78
6. Step 6: Final answer
   x = 39,350.80