Finding the Fourth Proportional to 17,181.68, 23,724.12 and 13,196.48

Step by Step Solution

1. Step 1: Write the proportion equation
   17,181.68 : 23,724.12 = 13,196.48 : x
2. Step 2: Convert to fraction form
   17,181.68/23,724.12 = 13,196.48/x
3. Step 3: Cross multiply
   17,181.68x = 23,724.12 × 13,196.48
4. Step 4: Simplify right side
   17,181.68x = 313,074,875.10
5. Step 5: Solve for x
   x = 313,074,875.10/17,181.68
6. Step 6: Final answer
   x = 18,221.44