Finding the Fourth Proportional to 16,139.18, 24,205.86 and 4,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.18 : 24,205.86 = 4,449.50 : x
2. Step 2: Convert to fraction form
   16,139.18/24,205.86 = 4,449.50/x
3. Step 3: Cross multiply
   16,139.18x = 24,205.86 × 4,449.50
4. Step 4: Simplify right side
   16,139.18x = 107,703,974.07
5. Step 5: Solve for x
   x = 107,703,974.07/16,139.18
6. Step 6: Final answer
   x = 6,673.45