Finding the Fourth Proportional to 22,453.61, 33,662.15 and 8,405.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,453.61 : 33,662.15 = 8,405.76 : x
2. Step 2: Convert to fraction form
   22,453.61/33,662.15 = 8,405.76/x
3. Step 3: Cross multiply
   22,453.61x = 33,662.15 × 8,405.76
4. Step 4: Simplify right side
   22,453.61x = 282,955,911.96
5. Step 5: Solve for x
   x = 282,955,911.96/22,453.61
6. Step 6: Final answer
   x = 12,601.80