Finding the Fourth Proportional to 12,404.73, 18,590.58 and 5,817.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.73 : 18,590.58 = 5,817.06 : x
2. Step 2: Convert to fraction form
   12,404.73/18,590.58 = 5,817.06/x
3. Step 3: Cross multiply
   12,404.73x = 18,590.58 × 5,817.06
4. Step 4: Simplify right side
   12,404.73x = 108,142,519.29
5. Step 5: Solve for x
   x = 108,142,519.29/12,404.73
6. Step 6: Final answer
   x = 8,717.85