Finding the Fourth Proportional to 12,800.85, 17,665.52 and 7,495.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,800.85 : 17,665.52 = 7,495.89 : x
2. Step 2: Convert to fraction form
   12,800.85/17,665.52 = 7,495.89/x
3. Step 3: Cross multiply
   12,800.85x = 17,665.52 × 7,495.89
4. Step 4: Simplify right side
   12,800.85x = 132,418,794.71
5. Step 5: Solve for x
   x = 132,418,794.71/12,800.85
6. Step 6: Final answer
   x = 10,344.53