Finding the Fourth Proportional to 23,589.46, 32,553.12 and 12,978.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,589.46 : 32,553.12 = 12,978.82 : x
2. Step 2: Convert to fraction form
   23,589.46/32,553.12 = 12,978.82/x
3. Step 3: Cross multiply
   23,589.46x = 32,553.12 × 12,978.82
4. Step 4: Simplify right side
   23,589.46x = 422,501,084.92
5. Step 5: Solve for x
   x = 422,501,084.92/23,589.46
6. Step 6: Final answer
   x = 17,910.59