Finding the Fourth Proportional to 23,451.30, 32,361.72 and 12,840.69

Step by Step Solution

1. Step 1: Write the proportion equation
   23,451.30 : 32,361.72 = 12,840.69 : x
2. Step 2: Convert to fraction form
   23,451.30/32,361.72 = 12,840.69/x
3. Step 3: Cross multiply
   23,451.30x = 32,361.72 × 12,840.69
4. Step 4: Simplify right side
   23,451.30x = 415,546,814.39
5. Step 5: Solve for x
   x = 415,546,814.39/23,451.30
6. Step 6: Final answer
   x = 17,719.56