Finding the Fourth Proportional to 22,429.60, 30,951.71 and 12,357.77

Step by Step Solution

1. Step 1: Write the proportion equation
   22,429.60 : 30,951.71 = 12,357.77 : x
2. Step 2: Convert to fraction form
   22,429.60/30,951.71 = 12,357.77/x
3. Step 3: Cross multiply
   22,429.60x = 30,951.71 × 12,357.77
4. Step 4: Simplify right side
   22,429.60x = 382,493,943.08
5. Step 5: Solve for x
   x = 382,493,943.08/22,429.60
6. Step 6: Final answer
   x = 17,053.09