Finding the Fourth Proportional to 22,398.52, 30,911.88 and 12,328.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,398.52 : 30,911.88 = 12,328.96 : x
2. Step 2: Convert to fraction form
   22,398.52/30,911.88 = 12,328.96/x
3. Step 3: Cross multiply
   22,398.52x = 30,911.88 × 12,328.96
4. Step 4: Simplify right side
   22,398.52x = 381,111,332.04
5. Step 5: Solve for x
   x = 381,111,332.04/22,398.52
6. Step 6: Final answer
   x = 17,015.02