Finding the Fourth Proportional to 13,103.96, 19,566.78 and 12,363.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,103.96 : 19,566.78 = 12,363.96 : x
2. Step 2: Convert to fraction form
   13,103.96/19,566.78 = 12,363.96/x
3. Step 3: Cross multiply
   13,103.96x = 19,566.78 × 12,363.96
4. Step 4: Simplify right side
   13,103.96x = 241,922,885.25
5. Step 5: Solve for x
   x = 241,922,885.25/13,103.96
6. Step 6: Final answer
   x = 18,461.82