Finding the Fourth Proportional to 22,998.08, 31,736.82 and 12,788.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,998.08 : 31,736.82 = 12,788.42 : x
2. Step 2: Convert to fraction form
   22,998.08/31,736.82 = 12,788.42/x
3. Step 3: Cross multiply
   22,998.08x = 31,736.82 × 12,788.42
4. Step 4: Simplify right side
   22,998.08x = 405,863,783.62
5. Step 5: Solve for x
   x = 405,863,783.62/22,998.08
6. Step 6: Final answer
   x = 17,647.72