Finding the Fourth Proportional to 10,471.89, 15,707.82 and 2,680.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,471.89 : 15,707.82 = 2,680.69 : x
2. Step 2: Convert to fraction form
   10,471.89/15,707.82 = 2,680.69/x
3. Step 3: Cross multiply
   10,471.89x = 15,707.82 × 2,680.69
4. Step 4: Simplify right side
   10,471.89x = 42,107,710.75
5. Step 5: Solve for x
   x = 42,107,710.75/10,471.89
6. Step 6: Final answer
   x = 4,021.02