Finding the Fourth Proportional to 8,357.75, 12,532.53 and 3,426.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,357.75 : 12,532.53 = 3,426.05 : x
2. Step 2: Convert to fraction form
   8,357.75/12,532.53 = 3,426.05/x
3. Step 3: Cross multiply
   8,357.75x = 12,532.53 × 3,426.05
4. Step 4: Simplify right side
   8,357.75x = 42,937,074.41
5. Step 5: Solve for x
   x = 42,937,074.41/8,357.75
6. Step 6: Final answer
   x = 5,137.40