Finding the Fourth Proportional to 12,411.38, 18,527.70 and 10,637.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.38 : 18,527.70 = 10,637.25 : x
2. Step 2: Convert to fraction form
   12,411.38/18,527.70 = 10,637.25/x
3. Step 3: Cross multiply
   12,411.38x = 18,527.70 × 10,637.25
4. Step 4: Simplify right side
   12,411.38x = 197,083,776.83
5. Step 5: Solve for x
   x = 197,083,776.83/12,411.38
6. Step 6: Final answer
   x = 15,879.29