Finding the Fourth Proportional to 22,753.12, 31,401.32 and 13,196.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,753.12 : 31,401.32 = 13,196.56 : x
2. Step 2: Convert to fraction form
   22,753.12/31,401.32 = 13,196.56/x
3. Step 3: Cross multiply
   22,753.12x = 31,401.32 × 13,196.56
4. Step 4: Simplify right side
   22,753.12x = 414,389,403.46
5. Step 5: Solve for x
   x = 414,389,403.46/22,753.12
6. Step 6: Final answer
   x = 18,212.42