Finding the Fourth Proportional to 12,965.12, 17,892.23 and 7,929.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,965.12 : 17,892.23 = 7,929.25 : x
2. Step 2: Convert to fraction form
   12,965.12/17,892.23 = 7,929.25/x
3. Step 3: Cross multiply
   12,965.12x = 17,892.23 × 7,929.25
4. Step 4: Simplify right side
   12,965.12x = 141,871,964.73
5. Step 5: Solve for x
   x = 141,871,964.73/12,965.12
6. Step 6: Final answer
   x = 10,942.59