Finding the Fourth Proportional to 12,504.77, 17,265.61 and 7,731.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,504.77 : 17,265.61 = 7,731.25 : x
2. Step 2: Convert to fraction form
   12,504.77/17,265.61 = 7,731.25/x
3. Step 3: Cross multiply
   12,504.77x = 17,265.61 × 7,731.25
4. Step 4: Simplify right side
   12,504.77x = 133,484,708.66
5. Step 5: Solve for x
   x = 133,484,708.66/12,504.77
6. Step 6: Final answer
   x = 10,674.71