Finding the Fourth Proportional to 22,446.45, 30,966.23 and 13,488.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,446.45 : 30,966.23 = 13,488.73 : x
2. Step 2: Convert to fraction form
   22,446.45/30,966.23 = 13,488.73/x
3. Step 3: Cross multiply
   22,446.45x = 30,966.23 × 13,488.73
4. Step 4: Simplify right side
   22,446.45x = 417,695,071.89
5. Step 5: Solve for x
   x = 417,695,071.89/22,446.45
6. Step 6: Final answer
   x = 18,608.51