Finding the Fourth Proportional to 22,866.10, 31,551.42 and 13,436.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,866.10 : 31,551.42 = 13,436.48 : x
2. Step 2: Convert to fraction form
   22,866.10/31,551.42 = 13,436.48/x
3. Step 3: Cross multiply
   22,866.10x = 31,551.42 × 13,436.48
4. Step 4: Simplify right side
   22,866.10x = 423,940,153.07
5. Step 5: Solve for x
   x = 423,940,153.07/22,866.10
6. Step 6: Final answer
   x = 18,540.12