Finding the Fourth Proportional to 21,076.08, 29,091.06 and 13,911.23

Step by Step Solution

1. Step 1: Write the proportion equation
   21,076.08 : 29,091.06 = 13,911.23 : x
2. Step 2: Convert to fraction form
   21,076.08/29,091.06 = 13,911.23/x
3. Step 3: Cross multiply
   21,076.08x = 29,091.06 × 13,911.23
4. Step 4: Simplify right side
   21,076.08x = 404,692,338.07
5. Step 5: Solve for x
   x = 404,692,338.07/21,076.08
6. Step 6: Final answer
   x = 19,201.50