Finding the Fourth Proportional to 21,377.56, 32,072.82 and 15,149.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,377.56 : 32,072.82 = 15,149.62 : x
2. Step 2: Convert to fraction form
   21,377.56/32,072.82 = 15,149.62/x
3. Step 3: Cross multiply
   21,377.56x = 32,072.82 × 15,149.62
4. Step 4: Simplify right side
   21,377.56x = 485,891,035.33
5. Step 5: Solve for x
   x = 485,891,035.33/21,377.56
6. Step 6: Final answer
   x = 22,729.02