Finding the Fourth Proportional to 16,139.31, 24,208.91 and 4,293.07

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139.31 : 24,208.91 = 4,293.07 : x
2. Step 2: Convert to fraction form
   16,139.31/24,208.91 = 4,293.07/x
3. Step 3: Cross multiply
   16,139.31x = 24,208.91 × 4,293.07
4. Step 4: Simplify right side
   16,139.31x = 103,930,495.46
5. Step 5: Solve for x
   x = 103,930,495.46/16,139.31
6. Step 6: Final answer
   x = 6,439.59