Finding the Fourth Proportional to 16,116.10, 22,240.12 and 9,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,116.10 : 22,240.12 = 9,042.50 : x
2. Step 2: Convert to fraction form
   16,116.10/22,240.12 = 9,042.50/x
3. Step 3: Cross multiply
   16,116.10x = 22,240.12 × 9,042.50
4. Step 4: Simplify right side
   16,116.10x = 201,106,285.10
5. Step 5: Solve for x
   x = 201,106,285.10/16,116.10
6. Step 6: Final answer
   x = 12,478.60