Finding the Fourth Proportional to 22,565.46, 31,141.47 and 12,495

Step by Step Solution

1. Step 1: Write the proportion equation
   22,565.46 : 31,141.47 = 12,495 : x
2. Step 2: Convert to fraction form
   22,565.46/31,141.47 = 12,495/x
3. Step 3: Cross multiply
   22,565.46x = 31,141.47 × 12,495
4. Step 4: Simplify right side
   22,565.46x = 389,112,667.65
5. Step 5: Solve for x
   x = 389,112,667.65/22,565.46
6. Step 6: Final answer
   x = 17,243.73