Finding the Fourth Proportional to 21,726.45, 32,590.89 and 6,145.29

Step by Step Solution

1. Step 1: Write the proportion equation
   21,726.45 : 32,590.89 = 6,145.29 : x
2. Step 2: Convert to fraction form
   21,726.45/32,590.89 = 6,145.29/x
3. Step 3: Cross multiply
   21,726.45x = 32,590.89 × 6,145.29
4. Step 4: Simplify right side
   21,726.45x = 200,280,470.41
5. Step 5: Solve for x
   x = 200,280,470.41/21,726.45
6. Step 6: Final answer
   x = 9,218.28