Finding the Fourth Proportional to 22,576.64, 31,155.59 and 12,505.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,576.64 : 31,155.59 = 12,505.71 : x
2. Step 2: Convert to fraction form
   22,576.64/31,155.59 = 12,505.71/x
3. Step 3: Cross multiply
   22,576.64x = 31,155.59 × 12,505.71
4. Step 4: Simplify right side
   22,576.64x = 389,622,742.15
5. Step 5: Solve for x
   x = 389,622,742.15/22,576.64
6. Step 6: Final answer
   x = 17,257.78