Finding the Fourth Proportional to 10,983.71, 16,475.40 and 2,663.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.71 : 16,475.40 = 2,663.79 : x
2. Step 2: Convert to fraction form
   10,983.71/16,475.40 = 2,663.79/x
3. Step 3: Cross multiply
   10,983.71x = 16,475.40 × 2,663.79
4. Step 4: Simplify right side
   10,983.71x = 43,886,992.45
5. Step 5: Solve for x
   x = 43,886,992.45/10,983.71
6. Step 6: Final answer
   x = 3,995.65