Finding the Fourth Proportional to 5,691.45, 7,859.06 and 3,570.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,691.45 : 7,859.06 = 3,570.56 : x
2. Step 2: Convert to fraction form
   5,691.45/7,859.06 = 3,570.56/x
3. Step 3: Cross multiply
   5,691.45x = 7,859.06 × 3,570.56
4. Step 4: Simplify right side
   5,691.45x = 28,061,188.13
5. Step 5: Solve for x
   x = 28,061,188.13/5,691.45
6. Step 6: Final answer
   x = 4,930.41