Finding the Fourth Proportional to 5,610.71, 8,406.76 and 3,412.79

Step by Step Solution

1. Step 1: Write the proportion equation
   5,610.71 : 8,406.76 = 3,412.79 : x
2. Step 2: Convert to fraction form
   5,610.71/8,406.76 = 3,412.79/x
3. Step 3: Cross multiply
   5,610.71x = 8,406.76 × 3,412.79
4. Step 4: Simplify right side
   5,610.71x = 28,690,455.89
5. Step 5: Solve for x
   x = 28,690,455.89/5,610.71
6. Step 6: Final answer
   x = 5,113.52