Finding the Fourth Proportional to 22,754.57, 31,400.78 and 13,196.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,754.57 : 31,400.78 = 13,196.16 : x
2. Step 2: Convert to fraction form
   22,754.57/31,400.78 = 13,196.16/x
3. Step 3: Cross multiply
   22,754.57x = 31,400.78 × 13,196.16
4. Step 4: Simplify right side
   22,754.57x = 414,369,651.02
5. Step 5: Solve for x
   x = 414,369,651.02/22,754.57
6. Step 6: Final answer
   x = 18,210.40