Finding the Fourth Proportional to 16,111.42, 24,174.01 and 8,721.11

Step by Step Solution

1. Step 1: Write the proportion equation
   16,111.42 : 24,174.01 = 8,721.11 : x
2. Step 2: Convert to fraction form
   16,111.42/24,174.01 = 8,721.11/x
3. Step 3: Cross multiply
   16,111.42x = 24,174.01 × 8,721.11
4. Step 4: Simplify right side
   16,111.42x = 210,824,200.35
5. Step 5: Solve for x
   x = 210,824,200.35/16,111.42
6. Step 6: Final answer
   x = 13,085.39