Finding the Fourth Proportional to 21,870.38, 32,807.94 and 8,019.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,870.38 : 32,807.94 = 8,019.38 : x
2. Step 2: Convert to fraction form
   21,870.38/32,807.94 = 8,019.38/x
3. Step 3: Cross multiply
   21,870.38x = 32,807.94 × 8,019.38
4. Step 4: Simplify right side
   21,870.38x = 263,099,337.88
5. Step 5: Solve for x
   x = 263,099,337.88/21,870.38
6. Step 6: Final answer
   x = 12,029.94