Finding the Fourth Proportional to 21,529.22, 29,710.85 and 12,097.54

Step by Step Solution

1. Step 1: Write the proportion equation
   21,529.22 : 29,710.85 = 12,097.54 : x
2. Step 2: Convert to fraction form
   21,529.22/29,710.85 = 12,097.54/x
3. Step 3: Cross multiply
   21,529.22x = 29,710.85 × 12,097.54
4. Step 4: Simplify right side
   21,529.22x = 359,428,196.31
5. Step 5: Solve for x
   x = 359,428,196.31/21,529.22
6. Step 6: Final answer
   x = 16,694.90