Finding the Fourth Proportional to 21,499.92, 32,251.91 and 8,353.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.92 : 32,251.91 = 8,353.30 : x
2. Step 2: Convert to fraction form
   21,499.92/32,251.91 = 8,353.30/x
3. Step 3: Cross multiply
   21,499.92x = 32,251.91 × 8,353.30
4. Step 4: Simplify right side
   21,499.92x = 269,409,879.80
5. Step 5: Solve for x
   x = 269,409,879.80/21,499.92
6. Step 6: Final answer
   x = 12,530.74