Finding the Fourth Proportional to 22,123.14, 30,530.79 and 12,693.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,123.14 : 30,530.79 = 12,693.48 : x
2. Step 2: Convert to fraction form
   22,123.14/30,530.79 = 12,693.48/x
3. Step 3: Cross multiply
   22,123.14x = 30,530.79 × 12,693.48
4. Step 4: Simplify right side
   22,123.14x = 387,541,972.25
5. Step 5: Solve for x
   x = 387,541,972.25/22,123.14
6. Step 6: Final answer
   x = 17,517.49