Finding the Fourth Proportional to 22,447.98, 30,976.02 and 13,015.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,447.98 : 30,976.02 = 13,015.50 : x
2. Step 2: Convert to fraction form
   22,447.98/30,976.02 = 13,015.50/x
3. Step 3: Cross multiply
   22,447.98x = 30,976.02 × 13,015.50
4. Step 4: Simplify right side
   22,447.98x = 403,168,388.31
5. Step 5: Solve for x
   x = 403,168,388.31/22,447.98
6. Step 6: Final answer
   x = 17,960.12