Finding the Fourth Proportional to 22,273, 30,737.23 and 12,712.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,273 : 30,737.23 = 12,712.69 : x
2. Step 2: Convert to fraction form
   22,273/30,737.23 = 12,712.69/x
3. Step 3: Cross multiply
   22,273x = 30,737.23 × 12,712.69
4. Step 4: Simplify right side
   22,273x = 390,752,876.45
5. Step 5: Solve for x
   x = 390,752,876.45/22,273
6. Step 6: Final answer
   x = 17,543.79