Finding the Fourth Proportional to 21,598.48, 32,405.82 and 8,459.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,598.48 : 32,405.82 = 8,459.92 : x
2. Step 2: Convert to fraction form
   21,598.48/32,405.82 = 8,459.92/x
3. Step 3: Cross multiply
   21,598.48x = 32,405.82 × 8,459.92
4. Step 4: Simplify right side
   21,598.48x = 274,150,644.73
5. Step 5: Solve for x
   x = 274,150,644.73/21,598.48
6. Step 6: Final answer
   x = 12,693.05