Finding the Fourth Proportional to 16,025.35, 22,111.20 and 9,306.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,025.35 : 22,111.20 = 9,306.99 : x
2. Step 2: Convert to fraction form
   16,025.35/22,111.20 = 9,306.99/x
3. Step 3: Cross multiply
   16,025.35x = 22,111.20 × 9,306.99
4. Step 4: Simplify right side
   16,025.35x = 205,788,717.29
5. Step 5: Solve for x
   x = 205,788,717.29/16,025.35
6. Step 6: Final answer
   x = 12,841.45