Finding the Fourth Proportional to 12,225.82, 18,335.78 and 5,645.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,225.82 : 18,335.78 = 5,645.68 : x
2. Step 2: Convert to fraction form
   12,225.82/18,335.78 = 5,645.68/x
3. Step 3: Cross multiply
   12,225.82x = 18,335.78 × 5,645.68
4. Step 4: Simplify right side
   12,225.82x = 103,517,946.43
5. Step 5: Solve for x
   x = 103,517,946.43/12,225.82
6. Step 6: Final answer
   x = 8,467.16