Finding the Fourth Proportional to 17,730.49, 24,434.40 and 12,685.96

Step by Step Solution

1. Step 1: Write the proportion equation
   17,730.49 : 24,434.40 = 12,685.96 : x
2. Step 2: Convert to fraction form
   17,730.49/24,434.40 = 12,685.96/x
3. Step 3: Cross multiply
   17,730.49x = 24,434.40 × 12,685.96
4. Step 4: Simplify right side
   17,730.49x = 309,973,757.59
5. Step 5: Solve for x
   x = 309,973,757.59/17,730.49
6. Step 6: Final answer
   x = 17,482.53