Finding the Fourth Proportional to 22,576.43, 31,155.80 and 13,016.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,576.43 : 31,155.80 = 13,016.15 : x
2. Step 2: Convert to fraction form
   22,576.43/31,155.80 = 13,016.15/x
3. Step 3: Cross multiply
   22,576.43x = 31,155.80 × 13,016.15
4. Step 4: Simplify right side
   22,576.43x = 405,528,345.31
5. Step 5: Solve for x
   x = 405,528,345.31/22,576.43
6. Step 6: Final answer
   x = 17,962.47