Finding the Fourth Proportional to 82,284.98, 123,430.43 and 42,293.21

Step by Step Solution

1. Step 1: Write the proportion equation
   82,284.98 : 123,430.43 = 42,293.21 : x
2. Step 2: Convert to fraction form
   82,284.98/123,430.43 = 42,293.21/x
3. Step 3: Cross multiply
   82,284.98x = 123,430.43 × 42,293.21
4. Step 4: Simplify right side
   82,284.98x = 5,220,268,584.96
5. Step 5: Solve for x
   x = 5,220,268,584.96/82,284.98
6. Step 6: Final answer
   x = 63,441.33