Finding the Fourth Proportional to 16,672.05, 25,026.30 and 10,439.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,672.05 : 25,026.30 = 10,439.10 : x
2. Step 2: Convert to fraction form
   16,672.05/25,026.30 = 10,439.10/x
3. Step 3: Cross multiply
   16,672.05x = 25,026.30 × 10,439.10
4. Step 4: Simplify right side
   16,672.05x = 261,252,048.33
5. Step 5: Solve for x
   x = 261,252,048.33/16,672.05
6. Step 6: Final answer
   x = 15,670.06