Finding the Fourth Proportional to 12,354.59, 18,513.56 and 6,493.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.59 : 18,513.56 = 6,493.43 : x
2. Step 2: Convert to fraction form
   12,354.59/18,513.56 = 6,493.43/x
3. Step 3: Cross multiply
   12,354.59x = 18,513.56 × 6,493.43
4. Step 4: Simplify right side
   12,354.59x = 120,216,568.43
5. Step 5: Solve for x
   x = 120,216,568.43/12,354.59
6. Step 6: Final answer
   x = 9,730.52