Finding the Fourth Proportional to 8,300.39, 12,453.02 and 2,457.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300.39 : 12,453.02 = 2,457.15 : x
2. Step 2: Convert to fraction form
   8,300.39/12,453.02 = 2,457.15/x
3. Step 3: Cross multiply
   8,300.39x = 12,453.02 × 2,457.15
4. Step 4: Simplify right side
   8,300.39x = 30,598,972.19
5. Step 5: Solve for x
   x = 30,598,972.19/8,300.39
6. Step 6: Final answer
   x = 3,686.45