Finding the Fourth Proportional to 82,660.75, 123,928.70 and 42,636.83

Step by Step Solution

1. Step 1: Write the proportion equation
   82,660.75 : 123,928.70 = 42,636.83 : x
2. Step 2: Convert to fraction form
   82,660.75/123,928.70 = 42,636.83/x
3. Step 3: Cross multiply
   82,660.75x = 123,928.70 × 42,636.83
4. Step 4: Simplify right side
   82,660.75x = 5,283,926,081.19
5. Step 5: Solve for x
   x = 5,283,926,081.19/82,660.75
6. Step 6: Final answer
   x = 63,923.04