Finding the Fourth Proportional to 22,483.45, 31,031.69 and 12,930.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,483.45 : 31,031.69 = 12,930.02 : x
2. Step 2: Convert to fraction form
   22,483.45/31,031.69 = 12,930.02/x
3. Step 3: Cross multiply
   22,483.45x = 31,031.69 × 12,930.02
4. Step 4: Simplify right side
   22,483.45x = 401,240,249.50
5. Step 5: Solve for x
   x = 401,240,249.50/22,483.45
6. Step 6: Final answer
   x = 17,846.03