Finding the Fourth Proportional to 12,238.25, 16,899.12 and 7,769.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238.25 : 16,899.12 = 7,769.93 : x
2. Step 2: Convert to fraction form
   12,238.25/16,899.12 = 7,769.93/x
3. Step 3: Cross multiply
   12,238.25x = 16,899.12 × 7,769.93
4. Step 4: Simplify right side
   12,238.25x = 131,304,894.97
5. Step 5: Solve for x
   x = 131,304,894.97/12,238.25
6. Step 6: Final answer
   x = 10,729.06