Finding the Fourth Proportional to 5,851.76, 8,735.92 and 5,646.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,851.76 : 8,735.92 = 5,646.72 : x
2. Step 2: Convert to fraction form
   5,851.76/8,735.92 = 5,646.72/x
3. Step 3: Cross multiply
   5,851.76x = 8,735.92 × 5,646.72
4. Step 4: Simplify right side
   5,851.76x = 49,329,294.18
5. Step 5: Solve for x
   x = 49,329,294.18/5,851.76
6. Step 6: Final answer
   x = 8,429.82