Finding the Fourth Proportional to 21,556.76, 29,748.33 and 12,125.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,556.76 : 29,748.33 = 12,125.32 : x
2. Step 2: Convert to fraction form
   21,556.76/29,748.33 = 12,125.32/x
3. Step 3: Cross multiply
   21,556.76x = 29,748.33 × 12,125.32
4. Step 4: Simplify right side
   21,556.76x = 360,707,978.86
5. Step 5: Solve for x
   x = 360,707,978.86/21,556.76
6. Step 6: Final answer
   x = 16,732.94