Finding the Fourth Proportional to 21,623.27, 32,438.31 and 5,828.91

Step by Step Solution

1. Step 1: Write the proportion equation
   21,623.27 : 32,438.31 = 5,828.91 : x
2. Step 2: Convert to fraction form
   21,623.27/32,438.31 = 5,828.91/x
3. Step 3: Cross multiply
   21,623.27x = 32,438.31 × 5,828.91
4. Step 4: Simplify right side
   21,623.27x = 189,079,989.54
5. Step 5: Solve for x
   x = 189,079,989.54/21,623.27
6. Step 6: Final answer
   x = 8,744.28