Finding the Fourth Proportional to 13,196.92, 18,210.79 and 7,227.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.92 : 18,210.79 = 7,227.62 : x
2. Step 2: Convert to fraction form
   13,196.92/18,210.79 = 7,227.62/x
3. Step 3: Cross multiply
   13,196.92x = 18,210.79 × 7,227.62
4. Step 4: Simplify right side
   13,196.92x = 131,620,670.02
5. Step 5: Solve for x
   x = 131,620,670.02/13,196.92
6. Step 6: Final answer
   x = 9,973.59