Finding the Fourth Proportional to 16,243.83, 22,396.35 and 13,422.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,243.83 : 22,396.35 = 13,422.60 : x
2. Step 2: Convert to fraction form
   16,243.83/22,396.35 = 13,422.60/x
3. Step 3: Cross multiply
   16,243.83x = 22,396.35 × 13,422.60
4. Step 4: Simplify right side
   16,243.83x = 300,617,247.51
5. Step 5: Solve for x
   x = 300,617,247.51/16,243.83
6. Step 6: Final answer
   x = 18,506.55