Finding the Fourth Proportional to 16,139.76, 24,195.54 and 13,014.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.76 : 24,195.54 = 13,014.24 : x
2. Step 2: Convert to fraction form
   16,139.76/24,195.54 = 13,014.24/x
3. Step 3: Cross multiply
   16,139.76x = 24,195.54 × 13,014.24
4. Step 4: Simplify right side
   16,139.76x = 314,886,564.49
5. Step 5: Solve for x
   x = 314,886,564.49/16,139.76
6. Step 6: Final answer
   x = 19,509.99