Finding the Fourth Proportional to 16,260.30, 22,457.61 and 10,945.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,260.30 : 22,457.61 = 10,945.89 : x
2. Step 2: Convert to fraction form
   16,260.30/22,457.61 = 10,945.89/x
3. Step 3: Cross multiply
   16,260.30x = 22,457.61 × 10,945.89
4. Step 4: Simplify right side
   16,260.30x = 245,818,528.72
5. Step 5: Solve for x
   x = 245,818,528.72/16,260.30
6. Step 6: Final answer
   x = 15,117.71