Finding the Fourth Proportional to 16,870.82, 25,272.21 and 14,124.92

Step by Step Solution

1. Step 1: Write the proportion equation
   16,870.82 : 25,272.21 = 14,124.92 : x
2. Step 2: Convert to fraction form
   16,870.82/25,272.21 = 14,124.92/x
3. Step 3: Cross multiply
   16,870.82x = 25,272.21 × 14,124.92
4. Step 4: Simplify right side
   16,870.82x = 356,967,944.47
5. Step 5: Solve for x
   x = 356,967,944.47/16,870.82
6. Step 6: Final answer
   x = 21,158.90