Finding the Fourth Proportional to 17,874.15, 24,636.60 and 12,559.74

Step by Step Solution

1. Step 1: Write the proportion equation
   17,874.15 : 24,636.60 = 12,559.74 : x
2. Step 2: Convert to fraction form
   17,874.15/24,636.60 = 12,559.74/x
3. Step 3: Cross multiply
   17,874.15x = 24,636.60 × 12,559.74
4. Step 4: Simplify right side
   17,874.15x = 309,429,290.48
5. Step 5: Solve for x
   x = 309,429,290.48/17,874.15
6. Step 6: Final answer
   x = 17,311.55