Finding the Fourth Proportional to 21,051.42, 29,047.49 and 12,097.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,051.42 : 29,047.49 = 12,097.02 : x
2. Step 2: Convert to fraction form
   21,051.42/29,047.49 = 12,097.02/x
3. Step 3: Cross multiply
   21,051.42x = 29,047.49 × 12,097.02
4. Step 4: Simplify right side
   21,051.42x = 351,388,067.48
5. Step 5: Solve for x
   x = 351,388,067.48/21,051.42
6. Step 6: Final answer
   x = 16,691.89