Finding the Fourth Proportional to 21,594.22, 32,354.87 and 13,256.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,594.22 : 32,354.87 = 13,256.89 : x
2. Step 2: Convert to fraction form
   21,594.22/32,354.87 = 13,256.89/x
3. Step 3: Cross multiply
   21,594.22x = 32,354.87 × 13,256.89
4. Step 4: Simplify right side
   21,594.22x = 428,924,805.38
5. Step 5: Solve for x
   x = 428,924,805.38/21,594.22
6. Step 6: Final answer
   x = 19,862.95