Finding the Fourth Proportional to 8,600.69, 12,900.15 and 2,361.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,600.69 : 12,900.15 = 2,361.32 : x
2. Step 2: Convert to fraction form
   8,600.69/12,900.15 = 2,361.32/x
3. Step 3: Cross multiply
   8,600.69x = 12,900.15 × 2,361.32
4. Step 4: Simplify right side
   8,600.69x = 30,461,414.45
5. Step 5: Solve for x
   x = 30,461,414.45/8,600.69
6. Step 6: Final answer
   x = 3,541.74