Finding the Fourth Proportional to 83,818.62, 125,724.69 and 28,414.62

Step by Step Solution

1. Step 1: Write the proportion equation
   83,818.62 : 125,724.69 = 28,414.62 : x
2. Step 2: Convert to fraction form
   83,818.62/125,724.69 = 28,414.62/x
3. Step 3: Cross multiply
   83,818.62x = 125,724.69 × 28,414.62
4. Step 4: Simplify right side
   83,818.62x = 3,572,419,290.97
5. Step 5: Solve for x
   x = 3,572,419,290.97/83,818.62
6. Step 6: Final answer
   x = 42,620.83