Finding the Fourth Proportional to 12,145.48, 18,196.03 and 8,805.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,145.48 : 18,196.03 = 8,805.45 : x
2. Step 2: Convert to fraction form
   12,145.48/18,196.03 = 8,805.45/x
3. Step 3: Cross multiply
   12,145.48x = 18,196.03 × 8,805.45
4. Step 4: Simplify right side
   12,145.48x = 160,224,210.35
5. Step 5: Solve for x
   x = 160,224,210.35/12,145.48
6. Step 6: Final answer
   x = 13,192.08