Finding the Fourth Proportional to 21,327.30, 29,404.62 and 13,760.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,327.30 : 29,404.62 = 13,760.82 : x
2. Step 2: Convert to fraction form
   21,327.30/29,404.62 = 13,760.82/x
3. Step 3: Cross multiply
   21,327.30x = 29,404.62 × 13,760.82
4. Step 4: Simplify right side
   21,327.30x = 404,631,682.99
5. Step 5: Solve for x
   x = 404,631,682.99/21,327.30
6. Step 6: Final answer
   x = 18,972.48