Finding the Fourth Proportional to 12,664.76, 17,480.17 and 7,362.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,664.76 : 17,480.17 = 7,362.63 : x
2. Step 2: Convert to fraction form
   12,664.76/17,480.17 = 7,362.63/x
3. Step 3: Cross multiply
   12,664.76x = 17,480.17 × 7,362.63
4. Step 4: Simplify right side
   12,664.76x = 128,700,033.25
5. Step 5: Solve for x
   x = 128,700,033.25/12,664.76
6. Step 6: Final answer
   x = 10,162.06