Finding the Fourth Proportional to 8,576.74, 12,870.50 and 3,646.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,576.74 : 12,870.50 = 3,646.42 : x
2. Step 2: Convert to fraction form
   8,576.74/12,870.50 = 3,646.42/x
3. Step 3: Cross multiply
   8,576.74x = 12,870.50 × 3,646.42
4. Step 4: Simplify right side
   8,576.74x = 46,931,248.61
5. Step 5: Solve for x
   x = 46,931,248.61/8,576.74
6. Step 6: Final answer
   x = 5,471.92