Finding the Fourth Proportional to 21,388.27, 32,081.86 and 5,805.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,388.27 : 32,081.86 = 5,805.49 : x
2. Step 2: Convert to fraction form
   21,388.27/32,081.86 = 5,805.49/x
3. Step 3: Cross multiply
   21,388.27x = 32,081.86 × 5,805.49
4. Step 4: Simplify right side
   21,388.27x = 186,250,917.41
5. Step 5: Solve for x
   x = 186,250,917.41/21,388.27
6. Step 6: Final answer
   x = 8,708.09