Finding the Fourth Proportional to 17,858.82, 26,792.69 and 12,604.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,858.82 : 26,792.69 = 12,604.09 : x
2. Step 2: Convert to fraction form
   17,858.82/26,792.69 = 12,604.09/x
3. Step 3: Cross multiply
   17,858.82x = 26,792.69 × 12,604.09
4. Step 4: Simplify right side
   17,858.82x = 337,697,440.63
5. Step 5: Solve for x
   x = 337,697,440.63/17,858.82
6. Step 6: Final answer
   x = 18,909.28