Finding the Fourth Proportional to 22,103.55, 30,502.17 and 12,031.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,103.55 : 30,502.17 = 12,031.80 : x
2. Step 2: Convert to fraction form
   22,103.55/30,502.17 = 12,031.80/x
3. Step 3: Cross multiply
   22,103.55x = 30,502.17 × 12,031.80
4. Step 4: Simplify right side
   22,103.55x = 366,996,009.01
5. Step 5: Solve for x
   x = 366,996,009.01/22,103.55
6. Step 6: Final answer
   x = 16,603.49