Finding the Fourth Proportional to 16,061.48, 22,164.68 and 8,891.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,061.48 : 22,164.68 = 8,891.40 : x
2. Step 2: Convert to fraction form
   16,061.48/22,164.68 = 8,891.40/x
3. Step 3: Cross multiply
   16,061.48x = 22,164.68 × 8,891.40
4. Step 4: Simplify right side
   16,061.48x = 197,075,035.75
5. Step 5: Solve for x
   x = 197,075,035.75/16,061.48
6. Step 6: Final answer
   x = 12,270.04