Finding the Fourth Proportional to 67,874.21, 101,825.94 and 20,485.33

Step by Step Solution

1. Step 1: Write the proportion equation
   67,874.21 : 101,825.94 = 20,485.33 : x
2. Step 2: Convert to fraction form
   67,874.21/101,825.94 = 20,485.33/x
3. Step 3: Cross multiply
   67,874.21x = 101,825.94 × 20,485.33
4. Step 4: Simplify right side
   67,874.21x = 2,085,937,983.46
5. Step 5: Solve for x
   x = 2,085,937,983.46/67,874.21
6. Step 6: Final answer
   x = 30,732.41