Finding the Fourth Proportional to 16,590.11, 22,893.89 and 9,419.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,590.11 : 22,893.89 = 9,419.58 : x
2. Step 2: Convert to fraction form
   16,590.11/22,893.89 = 9,419.58/x
3. Step 3: Cross multiply
   16,590.11x = 22,893.89 × 9,419.58
4. Step 4: Simplify right side
   16,590.11x = 215,650,781.27
5. Step 5: Solve for x
   x = 215,650,781.27/16,590.11
6. Step 6: Final answer
   x = 12,998.76