Finding the Fourth Proportional to 12,700.73, 17,529.06 and 7,665.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.73 : 17,529.06 = 7,665.71 : x
2. Step 2: Convert to fraction form
   12,700.73/17,529.06 = 7,665.71/x
3. Step 3: Cross multiply
   12,700.73x = 17,529.06 × 7,665.71
4. Step 4: Simplify right side
   12,700.73x = 134,372,588.51
5. Step 5: Solve for x
   x = 134,372,588.51/12,700.73
6. Step 6: Final answer
   x = 10,579.91