Finding the Fourth Proportional to 12,479.36, 17,233.83 and 9,822.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,479.36 : 17,233.83 = 9,822.15 : x
2. Step 2: Convert to fraction form
   12,479.36/17,233.83 = 9,822.15/x
3. Step 3: Cross multiply
   12,479.36x = 17,233.83 × 9,822.15
4. Step 4: Simplify right side
   12,479.36x = 169,273,263.33
5. Step 5: Solve for x
   x = 169,273,263.33/12,479.36
6. Step 6: Final answer
   x = 13,564.26