Finding the Fourth Proportional to 16,980.58, 25,443.21 and 10,392.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,980.58 : 25,443.21 = 10,392.94 : x
2. Step 2: Convert to fraction form
   16,980.58/25,443.21 = 10,392.94/x
3. Step 3: Cross multiply
   16,980.58x = 25,443.21 × 10,392.94
4. Step 4: Simplify right side
   16,980.58x = 264,429,754.94
5. Step 5: Solve for x
   x = 264,429,754.94/16,980.58
6. Step 6: Final answer
   x = 15,572.48