Finding the Fourth Proportional to 16,796.72, 23,171.72 and 10,830.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,796.72 : 23,171.72 = 10,830.31 : x
2. Step 2: Convert to fraction form
   16,796.72/23,171.72 = 10,830.31/x
3. Step 3: Cross multiply
   16,796.72x = 23,171.72 × 10,830.31
4. Step 4: Simplify right side
   16,796.72x = 250,956,740.82
5. Step 5: Solve for x
   x = 250,956,740.82/16,796.72
6. Step 6: Final answer
   x = 14,940.82