Finding the Fourth Proportional to 16,111.76, 24,174.53 and 8,721.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,111.76 : 24,174.53 = 8,721.46 : x
2. Step 2: Convert to fraction form
   16,111.76/24,174.53 = 8,721.46/x
3. Step 3: Cross multiply
   16,111.76x = 24,174.53 × 8,721.46
4. Step 4: Simplify right side
   16,111.76x = 210,837,196.41
5. Step 5: Solve for x
   x = 210,837,196.41/16,111.76
6. Step 6: Final answer
   x = 13,085.92