Finding the Fourth Proportional to 16,245.60, 22,429.35 and 13,268.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,245.60 : 22,429.35 = 13,268.58 : x
2. Step 2: Convert to fraction form
   16,245.60/22,429.35 = 13,268.58/x
3. Step 3: Cross multiply
   16,245.60x = 22,429.35 × 13,268.58
4. Step 4: Simplify right side
   16,245.60x = 297,605,624.82
5. Step 5: Solve for x
   x = 297,605,624.82/16,245.60
6. Step 6: Final answer
   x = 18,319.15