Finding the Fourth Proportional to 12,805.48, 17,674.50 and 10,705.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,805.48 : 17,674.50 = 10,705.96 : x
2. Step 2: Convert to fraction form
   12,805.48/17,674.50 = 10,705.96/x
3. Step 3: Cross multiply
   12,805.48x = 17,674.50 × 10,705.96
4. Step 4: Simplify right side
   12,805.48x = 189,222,490.02
5. Step 5: Solve for x
   x = 189,222,490.02/12,805.48
6. Step 6: Final answer
   x = 14,776.68