Finding the Fourth Proportional to 22,272.32, 33,409.52 and 12,404.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,272.32 : 33,409.52 = 12,404.16 : x
2. Step 2: Convert to fraction form
   22,272.32/33,409.52 = 12,404.16/x
3. Step 3: Cross multiply
   22,272.32x = 33,409.52 × 12,404.16
4. Step 4: Simplify right side
   22,272.32x = 414,417,031.60
5. Step 5: Solve for x
   x = 414,417,031.60/22,272.32
6. Step 6: Final answer
   x = 18,606.82