Finding the Fourth Proportional to 21,680.81, 32,523.38 and 5,886.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,680.81 : 32,523.38 = 5,886.09 : x
2. Step 2: Convert to fraction form
   21,680.81/32,523.38 = 5,886.09/x
3. Step 3: Cross multiply
   21,680.81x = 32,523.38 × 5,886.09
4. Step 4: Simplify right side
   21,680.81x = 191,435,512.35
5. Step 5: Solve for x
   x = 191,435,512.35/21,680.81
6. Step 6: Final answer
   x = 8,829.72