Finding the Fourth Proportional to 12,364.31, 18,524.85 and 10,297.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,364.31 : 18,524.85 = 10,297.61 : x
2. Step 2: Convert to fraction form
   12,364.31/18,524.85 = 10,297.61/x
3. Step 3: Cross multiply
   12,364.31x = 18,524.85 × 10,297.61
4. Step 4: Simplify right side
   12,364.31x = 190,761,680.61
5. Step 5: Solve for x
   x = 190,761,680.61/12,364.31
6. Step 6: Final answer
   x = 15,428.41