Finding the Fourth Proportional to 8,570.21, 12,856.32 and 3,637.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,570.21 : 12,856.32 = 3,637.10 : x
2. Step 2: Convert to fraction form
   8,570.21/12,856.32 = 3,637.10/x
3. Step 3: Cross multiply
   8,570.21x = 12,856.32 × 3,637.10
4. Step 4: Simplify right side
   8,570.21x = 46,759,753.61
5. Step 5: Solve for x
   x = 46,759,753.61/8,570.21
6. Step 6: Final answer
   x = 5,456.08