Finding the Fourth Proportional to 16,097.80, 21,801.15 and 16,097.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,097.80 : 21,801.15 = 16,097.80 : x
2. Step 2: Convert to fraction form
   16,097.80/21,801.15 = 16,097.80/x
3. Step 3: Cross multiply
   16,097.80x = 21,801.15 × 16,097.80
4. Step 4: Simplify right side
   16,097.80x = 350,950,552.47
5. Step 5: Solve for x
   x = 350,950,552.47/16,097.80
6. Step 6: Final answer
   x = 21,801.15