Finding the Fourth Proportional to 23,555.39, 32,506.50 and 12,945.71

Step by Step Solution

1. Step 1: Write the proportion equation
   23,555.39 : 32,506.50 = 12,945.71 : x
2. Step 2: Convert to fraction form
   23,555.39/32,506.50 = 12,945.71/x
3. Step 3: Cross multiply
   23,555.39x = 32,506.50 × 12,945.71
4. Step 4: Simplify right side
   23,555.39x = 420,819,559.58
5. Step 5: Solve for x
   x = 420,819,559.58/23,555.39
6. Step 6: Final answer
   x = 17,865.11