Finding the Fourth Proportional to 12,539.91, 17,304.72 and 6,874.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,539.91 : 17,304.72 = 6,874.37 : x
2. Step 2: Convert to fraction form
   12,539.91/17,304.72 = 6,874.37/x
3. Step 3: Cross multiply
   12,539.91x = 17,304.72 × 6,874.37
4. Step 4: Simplify right side
   12,539.91x = 118,958,961.50
5. Step 5: Solve for x
   x = 118,958,961.50/12,539.91
6. Step 6: Final answer
   x = 9,486.43