Finding the Fourth Proportional to 16,172.21, 22,317.61 and 9,098.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,172.21 : 22,317.61 = 9,098.63 : x
2. Step 2: Convert to fraction form
   16,172.21/22,317.61 = 9,098.63/x
3. Step 3: Cross multiply
   16,172.21x = 22,317.61 × 9,098.63
4. Step 4: Simplify right side
   16,172.21x = 203,059,642.29
5. Step 5: Solve for x
   x = 203,059,642.29/16,172.21
6. Step 6: Final answer
   x = 12,556.09