Finding the Fourth Proportional to 12,457.25, 18,685.58 and 3,097.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,457.25 : 18,685.58 = 3,097.29 : x
2. Step 2: Convert to fraction form
   12,457.25/18,685.58 = 3,097.29/x
3. Step 3: Cross multiply
   12,457.25x = 18,685.58 × 3,097.29
4. Step 4: Simplify right side
   12,457.25x = 57,874,644.59
5. Step 5: Solve for x
   x = 57,874,644.59/12,457.25
6. Step 6: Final answer
   x = 4,645.86