Finding the Fourth Proportional to 21,348.72, 29,462.34 and 13,796.28

Step by Step Solution

1. Step 1: Write the proportion equation
   21,348.72 : 29,462.34 = 13,796.28 : x
2. Step 2: Convert to fraction form
   21,348.72/29,462.34 = 13,796.28/x
3. Step 3: Cross multiply
   21,348.72x = 29,462.34 × 13,796.28
4. Step 4: Simplify right side
   21,348.72x = 406,470,692.10
5. Step 5: Solve for x
   x = 406,470,692.10/21,348.72
6. Step 6: Final answer
   x = 19,039.58