Finding the Fourth Proportional to 82,978.56, 124,468.61 and 26,818.70

Step by Step Solution

1. Step 1: Write the proportion equation
   82,978.56 : 124,468.61 = 26,818.70 : x
2. Step 2: Convert to fraction form
   82,978.56/124,468.61 = 26,818.70/x
3. Step 3: Cross multiply
   82,978.56x = 124,468.61 × 26,818.70
4. Step 4: Simplify right side
   82,978.56x = 3,338,085,554.57
5. Step 5: Solve for x
   x = 3,338,085,554.57/82,978.56
6. Step 6: Final answer
   x = 40,228.29