Finding the Fourth Proportional to 21,384.88, 32,106.41 and 12,031.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,384.88 : 32,106.41 = 12,031.48 : x
2. Step 2: Convert to fraction form
   21,384.88/32,106.41 = 12,031.48/x
3. Step 3: Cross multiply
   21,384.88x = 32,106.41 × 12,031.48
4. Step 4: Simplify right side
   21,384.88x = 386,287,629.79
5. Step 5: Solve for x
   x = 386,287,629.79/21,384.88
6. Step 6: Final answer
   x = 18,063.59