Finding the Fourth Proportional to 16,213.10, 22,376.86 and 9,140.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,213.10 : 22,376.86 = 9,140.18 : x
2. Step 2: Convert to fraction form
   16,213.10/22,376.86 = 9,140.18/x
3. Step 3: Cross multiply
   16,213.10x = 22,376.86 × 9,140.18
4. Step 4: Simplify right side
   16,213.10x = 204,528,393.50
5. Step 5: Solve for x
   x = 204,528,393.50/16,213.10
6. Step 6: Final answer
   x = 12,615.01