Finding the Fourth Proportional to 21,181.52, 29,233.16 and 12,797.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,181.52 : 29,233.16 = 12,797.52 : x
2. Step 2: Convert to fraction form
   21,181.52/29,233.16 = 12,797.52/x
3. Step 3: Cross multiply
   21,181.52x = 29,233.16 × 12,797.52
4. Step 4: Simplify right side
   21,181.52x = 374,111,949.76
5. Step 5: Solve for x
   x = 374,111,949.76/21,181.52
6. Step 6: Final answer
   x = 17,662.19