Finding the Fourth Proportional to 21,050.20, 29,055 and 12,098.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,050.20 : 29,055 = 12,098.62 : x
2. Step 2: Convert to fraction form
   21,050.20/29,055 = 12,098.62/x
3. Step 3: Cross multiply
   21,050.20x = 29,055 × 12,098.62
4. Step 4: Simplify right side
   21,050.20x = 351,525,404.10
5. Step 5: Solve for x
   x = 351,525,404.10/21,050.20
6. Step 6: Final answer
   x = 16,699.39