Finding the Fourth Proportional to 23,429.72, 32,333.80 and 12,819.36

Step by Step Solution

1. Step 1: Write the proportion equation
   23,429.72 : 32,333.80 = 12,819.36 : x
2. Step 2: Convert to fraction form
   23,429.72/32,333.80 = 12,819.36/x
3. Step 3: Cross multiply
   23,429.72x = 32,333.80 × 12,819.36
4. Step 4: Simplify right side
   23,429.72x = 414,498,622.37
5. Step 5: Solve for x
   x = 414,498,622.37/23,429.72
6. Step 6: Final answer
   x = 17,691.15