Finding the Fourth Proportional to 23,457.78, 32,371.48 and 12,846.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,457.78 : 32,371.48 = 12,846.78 : x
2. Step 2: Convert to fraction form
   23,457.78/32,371.48 = 12,846.78/x
3. Step 3: Cross multiply
   23,457.78x = 32,371.48 × 12,846.78
4. Step 4: Simplify right side
   23,457.78x = 415,869,281.83
5. Step 5: Solve for x
   x = 415,869,281.83/23,457.78
6. Step 6: Final answer
   x = 17,728.42