Finding the Fourth Proportional to 22,429.89, 30,952.23 and 12,357.87

Step by Step Solution

1. Step 1: Write the proportion equation
   22,429.89 : 30,952.23 = 12,357.87 : x
2. Step 2: Convert to fraction form
   22,429.89/30,952.23 = 12,357.87/x
3. Step 3: Cross multiply
   22,429.89x = 30,952.23 × 12,357.87
4. Step 4: Simplify right side
   22,429.89x = 382,503,634.55
5. Step 5: Solve for x
   x = 382,503,634.55/22,429.89
6. Step 6: Final answer
   x = 17,053.30