Finding the Fourth Proportional to 10,471.57, 15,709.78 and 3,451.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,471.57 : 15,709.78 = 3,451.33 : x
2. Step 2: Convert to fraction form
   10,471.57/15,709.78 = 3,451.33/x
3. Step 3: Cross multiply
   10,471.57x = 15,709.78 × 3,451.33
4. Step 4: Simplify right side
   10,471.57x = 54,219,635.01
5. Step 5: Solve for x
   x = 54,219,635.01/10,471.57
6. Step 6: Final answer
   x = 5,177.79