Finding the Fourth Proportional to 12,800.72, 17,665.08 and 7,495.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,800.72 : 17,665.08 = 7,495.63 : x
2. Step 2: Convert to fraction form
   12,800.72/17,665.08 = 7,495.63/x
3. Step 3: Cross multiply
   12,800.72x = 17,665.08 × 7,495.63
4. Step 4: Simplify right side
   12,800.72x = 132,410,903.60
5. Step 5: Solve for x
   x = 132,410,903.60/12,800.72
6. Step 6: Final answer
   x = 10,344.02