Finding the Fourth Proportional to 12,007.51, 16,579.32 and 7,761.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,007.51 : 16,579.32 = 7,761.23 : x
2. Step 2: Convert to fraction form
   12,007.51/16,579.32 = 7,761.23/x
3. Step 3: Cross multiply
   12,007.51x = 16,579.32 × 7,761.23
4. Step 4: Simplify right side
   12,007.51x = 128,675,865.93
5. Step 5: Solve for x
   x = 128,675,865.93/12,007.51
6. Step 6: Final answer
   x = 10,716.28