Finding the Fourth Proportional to 23,980.52, 33,078.17 and 15,479.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,980.52 : 33,078.17 = 15,479.37 : x
2. Step 2: Convert to fraction form
   23,980.52/33,078.17 = 15,479.37/x
3. Step 3: Cross multiply
   23,980.52x = 33,078.17 × 15,479.37
4. Step 4: Simplify right side
   23,980.52x = 512,029,271.05
5. Step 5: Solve for x
   x = 512,029,271.05/23,980.52
6. Step 6: Final answer
   x = 21,351.88