Finding the Fourth Proportional to 23,589.33, 32,553.71 and 12,978.73

Step by Step Solution

1. Step 1: Write the proportion equation
   23,589.33 : 32,553.71 = 12,978.73 : x
2. Step 2: Convert to fraction form
   23,589.33/32,553.71 = 12,978.73/x
3. Step 3: Cross multiply
   23,589.33x = 32,553.71 × 12,978.73
4. Step 4: Simplify right side
   23,589.33x = 422,505,812.59
5. Step 5: Solve for x
   x = 422,505,812.59/23,589.33
6. Step 6: Final answer
   x = 17,910.89