Finding the Fourth Proportional to 12,682.88, 17,499.84 and 7,376.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.88 : 17,499.84 = 7,376.96 : x
2. Step 2: Convert to fraction form
   12,682.88/17,499.84 = 7,376.96/x
3. Step 3: Cross multiply
   12,682.88x = 17,499.84 × 7,376.96
4. Step 4: Simplify right side
   12,682.88x = 129,095,619.69
5. Step 5: Solve for x
   x = 129,095,619.69/12,682.88
6. Step 6: Final answer
   x = 10,178.73