Finding the Fourth Proportional to 17,816.82, 24,545.40 and 12,429.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,816.82 : 24,545.40 = 12,429.42 : x
2. Step 2: Convert to fraction form
   17,816.82/24,545.40 = 12,429.42/x
3. Step 3: Cross multiply
   17,816.82x = 24,545.40 × 12,429.42
4. Step 4: Simplify right side
   17,816.82x = 305,085,085.67
5. Step 5: Solve for x
   x = 305,085,085.67/17,816.82
6. Step 6: Final answer
   x = 17,123.43