Finding the Fourth Proportional to 22,521.63, 31,080.56 and 12,450.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,521.63 : 31,080.56 = 12,450.39 : x
2. Step 2: Convert to fraction form
   22,521.63/31,080.56 = 12,450.39/x
3. Step 3: Cross multiply
   22,521.63x = 31,080.56 × 12,450.39
4. Step 4: Simplify right side
   22,521.63x = 386,965,031.17
5. Step 5: Solve for x
   x = 386,965,031.17/22,521.63
6. Step 6: Final answer
   x = 17,181.93