Finding the Fourth Proportional to 23,398.86, 32,290.51 and 12,788.67

Step by Step Solution

1. Step 1: Write the proportion equation
   23,398.86 : 32,290.51 = 12,788.67 : x
2. Step 2: Convert to fraction form
   23,398.86/32,290.51 = 12,788.67/x
3. Step 3: Cross multiply
   23,398.86x = 32,290.51 × 12,788.67
4. Step 4: Simplify right side
   23,398.86x = 412,952,676.52
5. Step 5: Solve for x
   x = 412,952,676.52/23,398.86
6. Step 6: Final answer
   x = 17,648.41